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Picture Transfer Protocol

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Picture Transfer Protocol ( PTP ) is a protocol originally developed by the Photographic and Imaging Manufacturers Association (PIMA) (later known as the International Imaging Industry Association ) to allow the transfer of images from digital cameras to computers and other peripheral devices without the need for additional device drivers . The protocol was standardized by the ISO in 2005. The current version of the standard is ISO 15740:2013.

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74-572: It is further standardized for USB by the USB Implementers Forum as the still image capture device class . USB is the default network transport media for PTP devices. USB PTP is a common alternative to the USB mass-storage device class (USB MSC), as a digital camera connection protocol. Some cameras support both modes. PTP specifies a way of creating, transferring and manipulating objects which are typically photographic images such as

148-503: A JPEG file. While it is common to think of the objects that PTP handle as files , they are abstract entities identified solely by a 32-bit object ID. These objects can however have parents and siblings so that a file-system–like view of device contents can be created. Until the standardization of PTP, digital camera vendors used different proprietary protocols for controlling digital cameras and transferring images to computers and other host devices. In an earlier but unrelated project,

222-445: A built-in hub that connects to the physical USB cable. USB device communication is based on pipes (logical channels). A pipe connects the host controller to a logical entity within a device, called an endpoint . Because pipes correspond to endpoints, the terms are sometimes used interchangeably. Each USB device can have up to 32 endpoints (16 in and 16 out ), though it is rare to have so many. Endpoints are defined and numbered by

296-623: A developer of nanoprint lithography systems, for an amount speculated to be around US$ 98 million. On 13 June 2014, Canon announced it had acquired Danish IP Surveillance VMS software company Milestone Systems. Milestone provides open-platform software to allow video management from various vendors in a single interface; therefore the company will operate as a separate entity. On 10 February 2015, Canon announced that it had intentions to buy Swedish Security Camera maker Axis Communications for US$ 2.83 billion. On 23 February 2015, Axis Communications reacted to this news and confirmed that it had received

370-539: A digital camera will support grabbing photos from an Android phone when you select the PTP mode. As with MTP , a limitation is that when transferring photos from a computer to the Android device, file timestamps are replaced with the time of the copy. For copies from the Android device to a computer however, the timestamps are preserved. PTP v1.11 (ISO 15740:2013) is a minor revision to PTP v1.1 (ISO 15740:2008). Both

444-659: A field zoom lens for television broadcasting in 1958, and in 1959 introduced the Reflex Zoom 8 and the Canonflex . In 1961, Canon introduced the Rangefinder camera, Canon 7 , and 50mm 1:0.95 lens in a special bayonet mount. In 1964 Canon introduced the 'Canola 130', the first Japanese made 10-key calculator , a substantial improvement on the design of the British Bell Punch company, which introduced

518-690: A focal-plane-based shutter. In 1947, the company name was changed to Canon Camera Co., Inc. , shortened to Canon Inc. in 1969. The name Canon comes from Buddhist bodhisattva Kannon ( Japanese : 観音 , lit.   ' Guanyin '), previously transliterated as Kuanyin, Kwannon, or Kwanon in English. The origins of Canon date back to the founding of Precision Optical Instruments Laboratory in Japan in 1933 by Takeshi Mitarai , Goro Yoshida  [ jp ] , Saburo Uchida  [ jp ] and Takeo Maeda  [ jp ] . It became

592-682: A new coding schema (128b/132b symbols, 10 Gbit/s; also known as Gen 2 ); for some time marketed as SuperSpeed+ ( SS+ ). The USB 3.2 specification added a second lane to the Enhanced SuperSpeed System besides other enhancements so that the SuperSpeedPlus USB system part implements the Gen 1×2 , Gen 2×1, and Gen 2×2 operation modes. However, the SuperSpeed USB part of the system still implements

666-680: A primary listing on the Tokyo Stock Exchange and is a constituent of the TOPIX Core 30 and Nikkei 225 indexes. It used to have a secondary listing on the New York Stock Exchange . The company was originally named Seikikōgaku kenkyūsho ( Japanese : 精機光学研究所 , lit.   'Precision Optical Laboratory'). In 1934, it produced the Kwanon , a prototype for Japan's first-ever 35 mm camera with

740-687: A purchase proposal from Canon. The purchase was effectively completed in April 2015. On 24 April 2015, Canon Europe announced it had acquired the London-based family photo sharing startup Lifecake. In November 2015, in an effort to avoid the selling of gray-market camera gear, Canon USA filed litigation against a number of camera gear retailers. Retailers include Get It Digital, All New Shop and F&E Trading. In March 2016, Canon acquired Toshiba Medical Systems Corporation for US$ 5.9 billion. On 28 March 2017, Canon Europe announced it had acquired

814-490: A range of wireless presenters, from advanced green laser presenters with back-lit screen display to basic red laser presentation clickers. Canon is developing a prototype virtual reality headset (Canon VR). The headset offers a wider viewing angle (120°) than other VR devices but requires handles rather than a head strap. The headset is not yet available on the market. As of 2020, Canon produces and sells high-end AR ( augmented reality ) headsets for enterprise users. Canon

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888-538: A standard to replace virtually all common ports on computers, mobile devices, peripherals, power supplies, and manifold other small electronics. In the current standard, the USB-C connector replaces the many various connectors for power (up to 240 W), displays (e.g. DisplayPort, HDMI), and many other uses, as well as all previous USB connectors. As of 2024, USB consists of four generations of specifications: USB 1. x , USB 2.0 , USB 3. x , and USB4 . USB4 enhances

962-582: A tethered connection (that is: no plug or receptacle at the peripheral end). There was no known miniature type A connector until USB 2.0 (revision 1.01) introduced one. USB 2.0 was released in April 2000, adding a higher maximum signaling rate of 480 Mbit/s (maximum theoretical data throughput 53 MByte/s ) named High Speed or High Bandwidth , in addition to the USB ;1. x Full Speed signaling rate of 12 Mbit/s (maximum theoretical data throughput 1.2 MByte/s). Modifications to

1036-619: A wide range of flatbed scanners , film scanners and document scanners for home and business use, including the Canon CanoScan 8800F . Some of its scanners employ LED inDirect Exposure (LiDE) technology, such that USB port is sufficient to power the scanner, and no additional power is required. Current printers use the proprietary BJNP protocol (USB over IP port 8611). Canon produced a range of calculators in various applications, including handheld calculators, desktop calculators, printing calculators and scientific calculators. One model

1110-508: Is full-duplex ; all earlier implementations, USB 1.0-2.0, are all half-duplex, arbitrated by the host. Low-power and high-power devices remain operational with this standard, but devices implementing SuperSpeed can provide increased current of between 150 mA and 900 mA, by discrete steps of 150 mA. USB 3.0 also introduced the USB Attached SCSI protocol (UASP) , which provides generally faster transfer speeds than

1184-643: Is IN while the TOKEN packet is an OUT packet), the TOKEN packet is ignored. Otherwise, it is accepted and the data transaction can start. A bi-directional endpoint, on the other hand, accepts both IN and OUT packets. Canon (company) Canon Inc. ( Japanese : キヤノン株式会社 ; Hepburn : Kyanon kabushiki gaisha ) is a Japanese multinational corporation headquartered in Ōta , Tokyo , specializing in optical, imaging, and industrial products, such as lenses , cameras , medical equipment, scanners , printers , and semiconductor manufacturing equipment. Canon has

1258-460: Is commonly implemented over the USB and FireWire transport layers. Images on digital cameras are generally stored as files on a mass storage device , such as a memory card , which is formatted with a file system, most commonly FAT12 , FAT16 or FAT32 , which may be laid out as per the Design rule for Camera File system (DCF) specification. But none of these are required as PTP abstracts from

1332-402: Is made using two connectors: a receptacle and a plug . Pictures show only receptacles: The Universal Serial Bus was developed to simplify and improve the interface between personal computers and peripheral devices, such as cell phones, computer accessories, and monitors, when compared with previously existing standard or ad hoc proprietary interfaces. From the computer user's perspective,

1406-684: Is maintained by the Society for Imaging Science and Engineering (IS&T). Media Transfer Protocol (MTP), developed by Microsoft , allows for transfer over wireless or wired networks based in part on FotoNation's PTP/IP, but also allows users to transfer other media aside from pictures, as well as for tagging objects with extended metadata (such as title, artist and similar metadata). Microsoft Windows has supported PTP from Windows ME onwards (excluding Windows CE ). Microsoft implements PTP on Windows through Windows Image Acquisition . A disadvantage of PTP on Windows as compared to USB mass storage

1480-495: Is one of the world's top producers of semiconductor and display manufacturing equipment. Its subsidiary Canon Tokki dominates the market of material deposition equipment, and instruments for manufacturing OLED displays. Canon is also the leading manufacturer of display photolithography equipment and one of the top 3 in the semiconductor lithography machine market. Once a leader of semiconductor lithography along with Nikon , it has been dwarfed by ASML , and as of 2017 its share in

1554-422: Is supported by a number of libraries, such as libgphoto and libptp , used by applications such as digiKam and F-Spot . As on Microsoft Windows there is no native support on Linux, but by means of GVfs the devices can easily be mounted and made available to applications that use standard POSIX commands and library functions. Android supports PTP, so that software programs that support grabbing photos from

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1628-426: Is that Windows does not assign drive letters to PTP devices, so image files on them cannot be manipulated by scripts or standard Windows programs, only by Windows Explorer or applications with specially written PTP support. Also, Windows Explorer does not display file modification timestamps (though these are available via the file Properties popup). PTP on Linux and other free and open-source operating systems

1702-685: The 2008 and 2013 versions of PTP are fully backward-compatible with PTP v1.0 (ISO 15740:2005) , and offer optional performance, compatibility, and feature enhancements including: Universal Serial Bus Universal Serial Bus ( USB ) is an industry standard that allows data exchange and delivery of power between many types of electronics. It specifies its architecture, in particular its physical interface , and communication protocols for data transfer and power delivery to and from hosts , such as personal computers , to and from peripheral devices , e.g. displays, keyboards, and mass storage devices, and to and from intermediate hubs , which multiply

1776-592: The 270EX II, 320EX, 430EX II, 430EX III-RT, 470EX-AI, 580EX, 580EX II, 600EX-RT, 600EXII-RT, EL-1, and EL-5 Speedlites. Canon also produces macro flash units, including the Macro Twin Lite and the Macro Ring Lite. Canon designs and manufactures CMOS image sensors in-house for its imaging products and it has three dedicated fabs in Japan . In 2016, Canon, the fifth-largest image sensor manufacturer in

1850-495: The 5, 10, and 20 Gbit/s capabilities as SuperSpeed USB 5Gbps , SuperSpeed USB 10 Gbps , and SuperSpeed USB 20 Gbps , respectively. In 2023, they were replaced again, removing "SuperSpeed" , with USB 5Gbps , USB 10Gbps , and USB 20Gbps . With new Packaging and Port logos. The USB4 specification was released on 29 August 2019 by the USB Implementers Forum. The USB4 2.0 specification

1924-545: The BOT (Bulk-Only-Transfer) protocol. USB 3.1 , released in July 2013 has two variants. The first one preserves USB 3.0's SuperSpeed architecture and protocol and its operation mode is newly named USB 3.1 Gen 1 , and the second version introduces a distinctively new SuperSpeedPlus architecture and protocol with a second operation mode named as USB 3.1 Gen 2 (marketed as SuperSpeed+ USB ). SuperSpeed+ doubles

1998-702: The Canon LBP-SX engine. Later models used the Canon LBP-LX, LBP-EX, LBP-PX engines and many other Canon print engines. Following Canon's acquisition of the Dutch digital printing manufacturer Océ in 2010, Canon continued to develop and manufacture printing systems, initially under the Océ brand name. On 1.1.2020 the company Océ was officially renamed Canon Production Printing . Canon has been sued over intentionally designing all-in-one printers that cannot scan when

2072-464: The GPS coordinates to an image's Exif data, at the time of image capture — even if the camera itself had no GPS functionality. A number of protocols have been developed that extend PTP. PTP/IP , developed by FotoNation and first implemented in a round of Wi-Fi digital cameras by Nikon , Canon , and Eastman Kodak , allows data transfer over any IP -based network. A vendor extension registry for PTP

2146-974: The London-based printing startup Kite. On 2 April 2019, Canon introduces two new UHDgc 2/3-inch Portable Zoom Lenses designed For 4K UHD Broadcast Cameras. In July 2020, Canon recorded its first ever quarterly loss due to the COVID-19 pandemic. In September 2020, Fujitsu announced that it would provide Canon with a Fujitsu Supercomputer PRIMEHPC FX1000 unit, to assist with its no-prototype development manufacturing initiative. In December 2020, Canon concluded its photographic-equipment print-ad series named "Wildlife as Canon Sees It". This series of ads began in 1981 in National Geographic magazine. In October 2023, Canon introduced its new nanoimprint lithography manufacturing systems, which it claims are simpler and more affordable than ASML 's extreme ultraviolet lithography systems. The system prints

2220-602: The RC-701. The RC series was followed by the PowerShot and Digital IXUS series of digital cameras. Canon also developed the EOS series of digital single-lens reflex cameras (DSLR) which includes high-end professional models. Due to consumers switching from compact cameras to smartphones , Canon's Q1 2013 operating profit fell 34 percent year-on-year. Canon produces a range of high-output flash units for its DSLR cameras, including

2294-501: The SuperSpeed USB Developers Conference. USB 3.0 adds a new architecture and protocol named SuperSpeed , with associated backward-compatible plugs, receptacles, and cables. SuperSpeed plugs and receptacles are identified with a distinct logo and blue inserts in standard format receptacles. The SuperSpeed architecture provides for an operation mode at a rate of 5.0 Gbit/s, in addition to

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2368-454: The USB 2.0 bus operating in parallel. The USB 3.0 specification defined a new architecture and protocol named SuperSpeed (aka SuperSpeed USB , marketed as SS ), which included a new lane for a new signal coding scheme (8b/10b symbols, 5 Gbit/s; later also known as Gen 1 ) providing full-duplex data transfers that physically required five additional wires and pins, while preserving

2442-416: The USB interface improves ease of use in several ways: The USB standard also provides multiple benefits for hardware manufacturers and software developers, specifically in the relative ease of implementation: As with all standards, USB possesses multiple limitations to its design: For a product developer, using USB requires the implementation of a complex protocol and implies an "intelligent" controller in

2516-401: The USB specification have been made via engineering change notices (ECNs). The most important of these ECNs are included into the USB 2.0 specification package available from USB.org: The USB 3.0 specification was released on 12 November 2008, with its management transferring from USB 3.0 Promoter Group to the USB Implementers Forum (USB-IF) and announced on 17 November 2008 at

2590-547: The USB 2.0 architecture and protocols and therefore keeping the original four pins/wires for the USB 2.0 backward-compatibility resulting in 9 wires (with 9 or 10 pins at connector interfaces; ID-pin is not wired) in total. The USB 3.1 specification introduced an Enhanced SuperSpeed System – while preserving the SuperSpeed architecture and protocol ( SuperSpeed USB ) – with an additional SuperSpeedPlus architecture and protocol (aka SuperSpeedPlus USB ) adding

2664-514: The XEED SX50 LCD projector. Canon introduced its first high-definition camcorder in 2005. In November 2009, Canon made a €730 million (US$ 1.1 billion) all-cash offer for the Dutch printer maker Océ . Canon had acquired majority ownership of Océ by March 2010, and completed the acquisition of 100% of shares in Océ by the end of 2011. In 2010, Canon acquired Tereck Office Solutions, Inc. On 16 March 2010, Canon announced that it

2738-413: The camera in this manner, it is expected that the USB endpoints are in (synchronous) Bulk Transfer Mode, for getting/setting virtually all the camera's features/properties (such as ISO, Aperture, Shutter speed and focus). Events raised by the camera, in response to specific actions performed by the host device, are sent back to the host via the USB asynchronous Interrupt endpoint. In addition to changing

2812-409: The camera's settings and operating mode, it is possible to receive a through-the-lens view using "Live View". As described above, the storage objects of the camera's memory cards can be manipulated too. By controlling a camera in this way it is possible to augment its capabilities. For example, if the controlling software was running on a smartphone with GPS functionality, it would be possible to add

2886-556: The company Precision Optical Instruments, Co., Ltd. in 1937. During its early years, the company did not have any facilities to produce its own optical glass, and its first cameras incorporated Nikkor lenses from Nippon Kogaku K.K. (the later Nikon Corporation ). Between 1933 and 1936, 'The Kwanon', a copy of the Leica design, Japan's first 35 mm focal-plane-shutter camera, was developed in prototype form. In 1940 Canon developed Japan's first indirect X-ray camera. Canon introduced

2960-862: The data transfer and power delivery functionality with ... a connection-oriented, tunneling architecture designed to combine multiple protocols onto a single physical interface so that the total speed and performance of the USB4 Fabric can be dynamically shared. USB4 particularly supports the tunneling of the Thunderbolt 3 protocols, namely PCI Express (PCIe, load/store interface) and DisplayPort (display interface). USB4 also adds host-to-host interfaces. Each specification sub-version supports different signaling rates from 1.5 and 12 Mbit/s total in USB 1.0 to 80 Gbit/s (in each direction) in USB4. USB also provides power to peripheral devices;

3034-1073: The desired circuit pattern onto the silicon wafer bypassing photolithography and can produce circuits equivalent to 5  nm scale. Canon's products include cameras (including compact digital camera , video camera , film SLR and digital SLR ), camcorders , lenses , broadcasting equipment and solutions (such as free viewpoint solution), professional displays, projectors , manufacturing equipment (including photolithography equipment such as steppers , scanners ), printers , photocopiers , image scanners , digital microfilm scanners , fax machines , binoculars , microscopes , medical equipment (including diagnostic systems such as ultrasound , X-ray , CT and MRI scanners and ophthalmic equipment ), CCTV solutions, image sensors , calculators , high precision positioning and measurement devices (such as rotary encoders ), custom optical components, handy terminals , mixed reality systems, software, and space satellites . Canon has been manufacturing and distributing digital cameras since 1984, starting with

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3108-506: The development of USB in 1995: Compaq , DEC , IBM , Intel , Microsoft , NEC , and Nortel . The goal was to make it fundamentally easier to connect external devices to PCs by replacing the multitude of connectors at the back of PCs, addressing the usability issues of existing interfaces, and simplifying software configuration of all devices connected to USB, as well as permitting greater data transfer rates for external devices and plug and play features. Ajay Bhatt and his team worked on

3182-402: The device during initialization (the period after physical connection called "enumeration") and so are relatively permanent, whereas pipes may be opened and closed. There are two types of pipe: stream and message. When a host starts a data transfer, it sends a TOKEN packet containing an endpoint specified with a tuple of (device_address, endpoint_number) . If the transfer is from the host to

3256-400: The endpoint, the host sends an OUT packet (a specialization of a TOKEN packet) with the desired device address and endpoint number. If the data transfer is from the device to the host, the host sends an IN packet instead. If the destination endpoint is a uni-directional endpoint whose manufacturer's designated direction does not match the TOKEN packet (e.g. the manufacturer's designated direction

3330-696: The first fully electronic calculator two years earlier with the Sumlock Anita Mark 8 unit. In 1965 Canon introduced the Canon Pellix , a single lens reflex (SLR) camera with a semi-transparent stationary mirror which enabled the taking of pictures through the mirror. In 1971, Canon introduced the Canon F-1 , a high-end SLR camera, and the FD lens range . In 1976, Canon launched the Canon AE-1 ,

3404-432: The following ECNs: A USB system consists of a host with one or more downstream facing ports (DFP), and multiple peripherals, forming a tiered- star topology . Additional USB hubs may be included, allowing up to five tiers. A USB host may have multiple controllers, each with one or more ports. Up to 127 devices may be connected to a single host controller. USB devices are linked in series through hubs. The hub built into

3478-448: The host controller is called the root hub . A USB device may consist of several logical sub-devices that are referred to as device functions . A composite device may provide several functions, for example, a webcam (video device function) with a built-in microphone (audio device function). An alternative to this is a compound device , in which the host assigns each logical device a distinct address and all logical devices connect to

3552-964: The latest versions of the standard extend the power delivery limits for battery charging and devices requiring up to 240 watts ( USB Power Delivery (USB-PD) ). Over the years, USB(-PD) has been adopted as the standard power supply and charging format for many mobile devices, such as mobile phones, reducing the need for proprietary chargers. USB was designed to standardize the connection of peripherals to personal computers, both to exchange data and to supply electric power. It has largely replaced interfaces such as serial ports and parallel ports and has become commonplace on various devices. Peripherals connected via USB include computer keyboards and mice, video cameras, printers, portable media players, mobile (portable) digital telephones, disk drives, and network adapters. USB connectors have been increasingly replacing other types of charging cables for portable devices. USB connector interfaces are classified into three types:

3626-614: The many various legacy Type-A (upstream) and Type-B (downstream) connectors found on hosts , hubs , and peripheral devices , and the modern Type-C ( USB-C ) connector, which replaces the many legacy connectors as the only applicable connector for USB4. The Type-A and Type-B connectors came in Standard, Mini, and Micro sizes. The standard format was the largest and was mainly used for desktop and larger peripheral equipment. The Mini-USB connectors (Mini-A, Mini-B, Mini-AB) were introduced for mobile devices. Still, they were quickly replaced by

3700-596: The maximum signaling rate to 10 Gbit/s (later marketed as SuperSpeed USB 10 Gbps by the USB 3.2 specification), while reducing line encoding overhead to just 3% by changing the encoding scheme to 128b/132b . USB 3.2 , released in September 2017, preserves existing USB 3.1 SuperSpeed and SuperSpeedPlus architectures and protocols and their respective operation modes, but introduces two additional SuperSpeedPlus operation modes ( USB 3.2 Gen 1×2 and USB 3.2 Gen 2×2 ) with

3774-508: The new USB-C Fabric with signaling rates of 10 and 20 Gbit/s (raw data rates of 1212 and 2424 MB/s). The increase in bandwidth is a result of two-lane operation over existing wires that were originally intended for flip-flop capabilities of the USB-C connector. Starting with the USB 3.2 specification, USB-IF introduced a new naming scheme. To help companies with the branding of the different operation modes, USB-IF recommended branding

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3848-452: The number of a host's ports. Introduced in 1996, USB was originally designed to standardize the connection of peripherals to computers, replacing various interfaces such as serial ports , parallel ports , game ports , and ADB ports. Early versions of USB became commonplace on a wide range of devices, such as keyboards, mice, cameras, printers, scanners, flash drives, smartphones, game consoles, and power banks. USB has since evolved into

3922-537: The one-lane Gen 1×1 operation mode. Therefore, two-lane operations, namely USB 3.2 Gen 1× 2 (10 Gbit/s) and Gen 2× 2 (20 Gbit/s), are only possible with Full-Featured USB-C. As of 2023, they are somewhat rarely implemented; Intel, however, started to include them in its 11th-generation SoC processor models, but Apple never provided them. On the other hand, USB 3.2 Gen 1(×1) (5 Gbit/s) and Gen 2(×1) (10 Gbit/s) have been quite common for some years. Each USB connection

3996-528: The optional functionality as Thunderbolt 4 products. USB4 2.0 with 80 Gbit/s speeds was to be revealed in November 2022. Further technical details were to be released at two USB developer days scheduled for November 2022. The USB4 specification states that the following technologies shall be supported by USB4: Because of the previous confusing naming schemes, USB-IF decided to change it once again. As of 2 September 2022, marketing names follow

4070-688: The overall market was less than 5%. Still, Canon maintains a great presence in the i-line stepper market. Canon introduced two MSX home computer models in 1983, the V-10 and the V-20 . Both offered just the minimum range of the MSX standards without any additional features. The V-20 was able to receive shooting data from the T90 Canon camera with the Data Memory Back T90 expansion. Canon also sold

4144-458: The peripheral device. Developers of USB devices intended for public sale generally must obtain a USB ID, which requires that they pay a fee to the USB Implementers Forum (USB-IF). Developers of products that use the USB specification must sign an agreement with the USB-IF. Use of the USB logos on the product requires annual fees and membership in the organization. A group of seven companies began

4218-478: The printer is low on ink. Canon settled the lawsuit in 2023 without admitting guilt. Canon's largest division in terms of revenue is its multifunction copier division. Canon distributes its consumer and home office imageCLASS line though retail outlets and professional-grade imageRUNNER series through subsidiary Canon Solutions America and independent distributors. The professional-grade series ranges from small table tops to large digital presses. Canon manufactures

4292-542: The standard at Intel; the first integrated circuits supporting USB were produced by Intel in 1995. Released in January 1996, USB 1.0 specified signaling rates of 1.5 Mbit/s ( Low Bandwidth or Low Speed ) and 12 Mbit/s ( Full Speed ). It did not allow for extension cables, due to timing and power limitations. Few USB devices made it to the market until USB 1.1 was released in August 1998. USB 1.1

4366-481: The syntax "USB  x Gbps", where x is the speed of transfer in Gbit/s. Overview of the updated names and logos can be seen in the adjacent table. The operation modes USB 3.2 Gen 2×2 and USB4 Gen 2×2 – or: USB 3.2 Gen 2×1 and USB4 Gen 2×1 – are not interchangeable or compatible; all participating controllers must operate with the same mode. This version incorporates

4440-415: The term "Picture Transfer Protocol" and the acronym "PTP" were both coined by Steve Mann, summarizing work on the creation of a Linux-friendly way of transferring pictures to and from home-made wearable computers, at a time when most cameras required the use of Microsoft Windows or Mac OS device drivers to transfer their pictures to a computer. PTP was originally standardized as PIMA 15470 in 2000, while it

4514-415: The thinner Micro-USB connectors (Micro-A, Micro-B, Micro-AB). The Type-C connector, also known as USB-C, is not exclusive to USB, is the only current standard for USB, is required for USB4, and is required by other standards, including modern DisplayPort and Thunderbolt. It is reversible and can support various functionalities and protocols, including USB; some are mandatory, and many are optional, depending on

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4588-489: The three existing operation modes. Its efficiency is dependent on a number of factors including physical symbol encoding and link-level overhead. At a 5 Gbit/s signaling rate with 8b/10b encoding , each byte needs 10 bits to transmit, so the raw throughput is 500 MB/s. When flow control, packet framing and protocol overhead are considered, it is realistic for about two thirds of the raw throughput, or 330 MB/s to transmit to an application. SuperSpeed's architecture

4662-468: The type of hardware: host, peripheral device, or hub. USB specifications provide backward compatibility, usually resulting in decreased signaling rates, maximal power offered, and other capabilities. The USB 1.1 specification replaces USB 1.0. The USB 2.0 specification is backward-compatible with USB 1.0/1.1. The USB 3.2 specification replaces USB 3.1 (and USB 3.0) while including the USB 2.0 specification. USB4 "functionally replaces" USB 3.2 while retaining

4736-406: The underlying representation. By contrast, if a camera is mounted via USB MSC , the physical file system and layout are exposed to the user. Many modern digital cameras from Canon and Nikon can be controlled via PTP from a USB host enabled computing device (smartphone, PC or Arduino for example). As is the norm for PTP, the communication takes place over a USB connection. When interacting with

4810-594: The world's first camera with an embedded micro-computer. Canon introduced their Inkjet printer using bubble-jet technology in 1985, one year after Hewlett-Packard. In 1987, Canon introduced their Canon Electro-Optical System (EOS), named after the goddess of the dawn, along with the Canon EOS 650 autofocus SLR camera. Also in 1987, the Canon Foundation was established. In 1988, Canon introduced 'Kyosei philosophy'. The EOS 1 Flagship Professional SLR line

4884-400: The world, decided to start selling the sensors to other companies. However, it does not plan to sell smartphone image sensors to focus on the niche markets such as industrial and space observation. Although Canon had withdrawn from the so-called ' pixel count race' in the 2000s, it has been on the cutting edge as to the image sensor resolution in recent years. A demo of a 250MP image sensor

4958-451: Was developed by the IT10 committee . Key contributors to the standard included Tim Looney and Tim Whitcher ( Eastman Kodak Company ) and Eran Steinberg ( Fotonation ). PTP does not specify a way for objects to be stored – it is a communication protocol. Nor does it specify a transport layer. However, it is designed to support existing standards, such as Exif , TIFF/EP , DCF , and DPOF , and

5032-494: Was launched in 1989. In the same year the EOS RT, the world's first AF SLR with a fixed, semi-transparent pellicle mirror, was unveiled. In 1992, Canon launched the Canon EOS 5 , the first-ever camera with eye-controlled AF, and the PowerShot 600, its first digital camera. In 1995, Canon introduced the first commercially available SLR lens with internal image stabilization, Canon EF 75-300mm lens f/4-5.6 IS USM. The Canon EOS-RS

5106-524: Was released on 1 September 2022 by the USB Implementers Forum. USB4 is based on the Thunderbolt 3 protocol. It supports 40 Gbit/s throughput, is compatible with Thunderbolt 3, and backward compatible with USB 3.2 and USB 2.0. The architecture defines a method to share a single high-speed link with multiple end device types dynamically that best serves the transfer of data by type and application. During CES 2020 , USB-IF and Intel stated their intention to allow USB4 products that support all

5180-491: Was revealed in 2015 and reported to be launched in 2020. In 2018, Canon launched a 120MP image sensor as a part of its latest BtoB offerings. For many years, Canon was the principal maker of the print engines found in industry-standard laser printers. The first models of Apple LaserWriter and the equivalent products made by HP used the Canon LBP-CX engine. The next models (LaserWriter II series, LaserJet II series) used

5254-648: Was seeking to acquire a new .canon generic top-level domain , acquiring it in February 2015 and using it for the first time on its global website in May 2016. In the third quarter of 2012, Canon's global market share in the sale of printers, copiers and multifunction devices was 20.90%. In early 2013, Canon USA moved into a new US$ 500 million headquarters in Melville, New York . In February 2014, Canon announced it would acquire Texas -based Molecular Imprints Inc.,

5328-537: Was the 1964 Canola 130. It had 13 digits, a result of marketing research. The reason for the odd number of figures was based on selling it to the Japanese central bank. Given the low value of the Japanese Yen, 13 digits was a requirement of the banks. The calculator was built by germanium transistors and the display was a light pipe which gave an odd format. Canon produces a range of projectors. Canon offers

5402-434: Was the earliest revision that was widely adopted and led to what Microsoft designated the " Legacy-free PC ". Neither USB 1.0 nor 1.1 specified a design for any connector smaller than the standard type A or type B. Though many designs for a miniaturized type B connector appeared on many peripherals, conformity to the USB 1. x standard was hampered by treating peripherals that had miniature connectors as though they had

5476-705: Was the world's fastest AF SLR camera with a continuous shooting speed of 10 frame/s at the time. Based on the EOS-1N, the EOS-1N RS had a fixed, semi-transparent pellicle mirror with a hard coat. In 1996, Canon introduced a pocket-sized digital camera with the Advanced Photo System , named ELPH in America and IXUS in Europe. Canon entered the digital video camcorder market in 1997. In 2004, Canon introduced

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