In mechanics and physics , shock is a sudden acceleration caused, for example, by impact , drop, kick, earthquake , or explosion . Shock is a transient physical excitation.
35-767: Sony Ericsson W600 is Sony Ericsson's second phone with a swivel design. It is the first swivel phone to have the Walkman features. It offers 256 MB of internal memory (memory is not expandable), MP3/AAC(.M4A)/MIDI playback, FM radio , full internet browsing capabilities, 1.3-megapixel camera (photos/videos), and three separate speakers. It has a utility flash light. The W600 is a Tri band phone with EDGE . The W600 also feature Sony Ericsson's Java platform 6 (JP-6). It has two dedicated gaming buttons, designed to play like Game Boy , with built-in games like Worms 3D and Gauntlet, which can be played on multiplayer using Bluetooth . Using Bluetooth users can control their desktops. The W600
70-660: A Walkman in bags or pockets. In October 1985, the WM-101 model was the first in its class with a "gum stick" rechargeable battery. In 1986 Sony presented the first model outfitted with remote control, as well as one with solar battery (WM-F107). Within a decade of launch, Sony held a 50% market share in the United States and 46% in Japan. Two limited edition 10th anniversary models were released in 1989 (WM-701S/T) in Japan, made of brass and plated in sterling silver . Only
105-485: A few hundred were built of each. A 15th anniversary model was also made on July 1, 1994, with vertical loading, and a 20th anniversary on July 1, 1999, with a prestige model. By 1989, 10 years after the launch of the first model, over 100 million Walkmans had been sold worldwide. 150 million units were manufactured by 1995. By 1999, 20 years after the introduction of the first model, Sony sold 186 million cassette Walkmans. Portable compact disc players led to
140-604: A mechanical shock. Shock measurement is of interest in several fields such as Shocks are usually measured by accelerometers but other transducers and high speed imaging are also used. A wide variety of laboratory instrumentation is available; stand-alone shock data loggers are also used. Field shocks are highly variable and often have very uneven shapes. Even laboratory controlled shocks often have uneven shapes and include short duration spikes; Noise can be reduced by appropriate digital or analog filtering. Governing test methods and specifications provide detail about
175-446: A person as they were walking. In the 1970s, Brazilian inventor Andreas Pavel devised a method for carrying a player of this type on a belt around the waist, listening via headphones , but his " Stereobelt " concept did not include the required engineering advancements to yield high-quality sound reproduction while the tape player was subject to mechanical shock as would be expected on a person walking. Pavel later lost his suit claiming
210-411: A rapid velocity change which creates the shock impulse. Testing the effects of shock are sometimes conducted on end-use applications: for example, automobile crash tests . Use of proper test methods and Verification and validation protocols are important for all phases of testing and evaluation. Mechanical shock has the potential for damaging an item (e.g., an entire light bulb ) or an element of
245-518: Is a North America-only phone; in other parts of the world, it is replaced by the W550i . W550i is virtually identical to the W600 except GSM frequency band. A common problem with this phone is the top half (the screen and navigation buttons) detaching from the bottom half (the keypad). This problem is caused by four loose screws that hold the top half to a swiveling metal plate attached to the bottom half. It
280-411: Is a vector that has units of an acceleration (rate of change of velocity). The unit g (or g ) represents multiples of the standard acceleration of gravity and is conventionally used. A shock pulse can be characterised by its peak acceleration, the duration, and the shape of the shock pulse (half sine, triangular, trapezoidal, etc.). The shock response spectrum is a method for further evaluating
315-487: Is possible for one to fix this on their own. Walkman Walkman ( Japanese : ウォークマン , Hepburn : U~ōkuman ) is a brand of portable audio players manufactured and marketed by Japanese company Sony since 1979. The original Walkman started out as a portable cassette player and the brand was later extended to serve most of Sony's portable audio devices; since 2011 it consists exclusively of digital flash memory players. The current flagship product as of 2022
350-717: Is the WM1ZM2 player. Walkman cassette players were very popular during the 1980s, which led to "walkman" becoming an genericized label term for personal compact stereos of any producer or brand. 220 million cassette-type Walkmen were sold by the end of production in 2010; including digital Walkman devices such as DAT , MiniDisc , CD (originally Discman then renamed the CD ;Walkman) and memory-type media players , it has sold approximately 400 million at this time. The Walkman brand has also been applied to transistor radios , and Sony Ericsson mobile phones. In March 1979, at
385-806: The Sony Ericsson joint venture. Sony could not repeat the success of the cassette player in the 21st-century digital audio player (DAP) market. Rival Apple 's iPod range became a large success in the market, hindering Walkman sales internationally, though it fared better domestically. The Network Walkman for several years had paltry market share and had also been struggling against numerous other rivals such as Creative , Rio , Mpio and iRiver , although sales and share did eventually increase fivefold in 2005 and continued improving, but remained small. Its pricing policy, SonicStage software and lack of MP3 support in earlier years have been suggested factors of its performance. Its U.S. market share in 2006
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#1732798123393420-448: The "Walkman" brand to some transistor radios starting with the matching blue SRF-40 FM Walkman in 1980, and added a radio system to some Walkman cassette models starting with the model WM-F1 in 1982. The first model with Dolby noise-reduction system and an auto reverse function appeared in 1982. The first ultra-compact "cassette-size" Walkman was introduced in 1983, model WM-20, with a telescopic case. This allowed even easier carrying of
455-484: The 40th anniversary. In 1989, Sony released portable Video8 recorders marketed as Video Walkman , extending the brand name. In 1990 Sony released portable Digital Audio Tape (DAT) players marketed as DAT Walkman . It was extended further in 1992 for MiniDisc players with the MD Walkman brand. From 1997, Sony's Discman range of portable compact disc (CD) players started to rebrand as CD Walkman . In 2000,
490-763: The UK. Eventually, in the early 1980s, Walkman caught on globally and Sony used the name worldwide. The TPS-L2 was introduced in the US in June ;1980. The 1980s was the decade of the intensive development of the Walkman lineup. In 1981 Sony released the second Walkman model, the WM-2, which was significantly smaller than the TPS-L2 thanks to the "inverse" mounting of the power-operated magnetic head and soft-touch buttons. Sony applied
525-491: The US, which in 1982 led to the mayor of Woodbridge, New Jersey banning Walkman from being worn in public due to pedestrian accidents. In the market, the Walkman's success also led to great adoption of the Compact Cassette format. Within a few years, cassettes were outselling vinyl records, and would continue to do so until the compact disc (CD) overtook cassette sales in 1991. In German-speaking countries,
560-507: The Walkman brand (the entire range) was unified, and a new small icon, "W.", was made for the branding. From 2012, Walkman was also the name of the music player software on Sony Xperia . It has since been rebranded to Music . On December 21, 1999, Sony launched its first digital audio players (DAP), under the name Network Walkman (alongside players developed by the VAIO division). The first player, which used Memory Stick storage medium,
595-417: The Walkman had a great effect and it became ubiquitous. According to Time , the Walkman's "unprecedented combination of portability (it ran on two AA batteries) and privacy (it featured a headphone jack but no external speaker) made it the ideal product for thousands of consumers looking for a compact portable stereo that they could take with them anywhere". According to The Verge , "the world changed" on
630-415: The Walkman idea as his own. Finally in 2003, with Pavel threatening to file infringement proceedings in the remaining territories where he held protective rights, Sony approached him with a view to settling the matter amicably, which led to both parties signing a contract and confidentiality agreement in 2004. The settlement was reported to be a cash payment in the "low eight figures" and ongoing royalties of
665-413: The Walkman, the common device for portable music was the portable radio, which could only offer listeners standard music broadcasts. Having the ability to customize a playlist was a new and exciting revolution in music consumption. Potential buyers had the opportunity to choose their perfect match in terms of mobile listening technology. The ability to play one's personal choice of music and listen privately
700-497: The conduct of shock tests. Proper placement of measuring instruments is critical. Fragile items and packaged goods respond with variation to uniform laboratory shocks; Replicate testing is often called for. For example, MIL-STD-810 G Method 516.6 indicates: at least three times in both directions along each of three orthogonal axes". Shock testing typically falls into two categories, classical shock testing and pyroshock or ballistic shock testing. Classical shock testing consists of
735-582: The day the Walkman was released. The Walkman became an icon in 1980s culture. In 1986, the word "Walkman" entered the Oxford English Dictionary . Millions used the Walkman during exercise, marking the beginning of the aerobics fad. Between 1987 and 1997, the height of the Walkman's popularity, the number of people who said they walked for exercise increased by 30%. Other firms, including Aiwa , Panasonic and Toshiba , produced similar products, and in 1983 cassettes outsold vinyl for
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#1732798123393770-462: The decline of the cassette Walkman, which was discontinued in Japan in 2010. The last cassette-based model available in the US was the WM-FX290W, which was first released in 2004. The marketing of the Walkman helped introduce the idea of "Japanese-ness" into global culture, synonymous with miniaturization and high-technology. The "Walk-men" and "Walk-women" in advertisements were created to be
805-423: The first time. The Walkman has been cited as influencing people's relationship with music and technology, due to its "solitary" and "personal" nature, as users were listening to their music of choice instead of radio. It has been seen as a precursor of personal mainstream tech possessions such as personal computers or mobile phones. Headphones also started to be worn in public. This caused safety controversies in
840-432: The following shock impulses: half sine , haversine, sawtooth wave , and trapezoid . Pyroshock and ballistic shock tests are specialized and are not considered classical shocks. Classical shocks can be performed on Electro Dynamic (ED) Shakers, Free Fall Drop Tower or Pneumatic Shock Machines. A classical shock impulse is created when the shock machine table changes direction abruptly. This abrupt change in direction causes
875-414: The ideal reflections of the viewing audience. Sony implemented a marketing strategy, hiring young adults to walk around in public wearing a Walkman, offering nearby people to test out the product. Sony also hired actors to pose with the Walkman around the streets of Tokyo as an additional form of promotion. A major component of the Walkman advertising campaign was overspecialization of the device. Prior to
910-557: The only Walkman-branded products still being produced today – although the "Network" prefix is no longer being used, the model numbers still carry the "NW-" prefix. The current product range as of 2022 are: Since 2017, Sony provided the Music Center for PC software on Microsoft Windows , designed for both content transfer and playback for Walkman and other audio products. Shock (mechanics) Shock describes matter subject to extreme rates of force with respect to time. Shock
945-505: The request of Masaru Ibuka , the audio department modified the small recorder used by journalists, "Pressman", into a smaller recorder. After many people praised the good sound quality evaluation, under the leadership of Akio Morita , SONY began to launch the Walkman in July 1979. Akio Morita positioned Walkman in the youth market, emphasized youth, vitality, and fashion, and created a headset culture. In February 1980, he began to sell Walkman to
980-415: The sale of certain Walkman models. Sony cofounder Masaru Ibuka used Sony's bulky TC-D5 cassette recorder to listen to music while traveling for business. He asked the executive deputy president Norio Ohga to design a playback-only stereo version optimized for walking. The metal-cased blue-and-silver Walkman TPS-L2, the world's first low-cost personal stereo , went on sale in Japan on July 1, 1979, and
1015-561: The use of "Walkman" became generic, meaning a personal stereo of any make, to a degree that the Austrian Supreme Court of Justice ruled in 2002 that Sony could not prevent others from using the term "Walkman" to describe similar goods. It is therefore an example of what marketing experts call the " genericide " of a brand. A large statue of a Sports Walkman FM was erected in Tokyo's Ginza district in 2019 in celebration of
1050-636: The world, and in November 1980, he began to use the non-standard Japanese and English brands globally. The Walkman has sold more than 250 million units worldwide. When Akio Morita was knighted in October 1992, the headline in the British newspapers The Sun and The Daily Telegraph was "Arise, Sir Sony Walkman" [Doing Cultural Studies: The Story of the Sony Walkman, Paul du Gay] [1] The Compact Cassette
1085-401: Was 1.9%, placing it behind Apple, SanDisk , Creative and Samsung . In Japan its share in 2009–2010 was between 43 and 48%, slightly ahead of Apple. Meanwhile, Sony Computer Entertainment , a Sony division who are not involved in Walkman products, officially described their PlayStation Portable in 2004 as the "21st century Walkman". Walkman portable digital audio and media players are
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1120-466: Was a huge selling point of the Walkman, especially amongst teens, who greatly contributed to its success. A diversity of features and styles suggested that there would be a product which was "the perfect choice" for each consumer. This method of marketing to an extremely expansive user-base while maintaining the idea that the product was made for each individual "[got] the best of all possible worlds—mass marketing and personal differentiation". Culturally
1155-520: Was branded as MS Walkman , shortly before the Walkman brand unification. Most future models would use built-in solid-state flash memory , although hard disk based players were also released from 2004 to 2007. They came with OpenMG copyright protection and, until 2004, exclusively supported Sony's in-house ATRAC format; there was no support for industry-standard MP3 as Sony wanted to protect its records division, Sony BMG , from piracy . Additionally, Walkman-branded mobile phones were also made by
1190-529: Was developed by the Dutch electronics firm Philips and released in August 1963. In the late 1960s, the introduction of prerecorded compact cassettes made it possible to listen to music on portable devices as well as on car stereos, though gramophone records remained the most popular format for home listening. Portable tape players of various designs were available, but none of them were intended to be operated by
1225-479: Was sold for around ¥33,000 (or $ 150.00). Though Sony predicted it would sell about 5,000 units a month, it sold more than 30,000 in the first two months. The Walkman was followed by a series of international releases; as overseas sales companies objected to the wasei-eigo name, it was sold under several names, including Sound-about in the United States, Freestyle in Australia and Sweden, and Stowaway in
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