Walkman is a Sony brand originally used for portable audio cassette, and now used to market Sony's portable audio and video players. The original Walkman introduced a change in music listening habits by allowing people to carry music with them.

The device was built in 1978 by audio division engineer Nobutoshi Kihara for Sony co-chairman Akio Morita, who wanted to be able to listen to operas during his frequent transpacific plane trips. The original Walkman was marketed in 1979 as the Walkman in Japan, the Soundabout in many other countries including the US, Freestyle in Sweden and the Stowaway in the UK. Morita hated the name "Walkman" and asked it to be changed, but relented after being told by junior executives that a promotion campaign had already begun using the 'Walkman' name and would be too expensive to change.

The names "Walkman", "Pressman", "Watchman", "Scoopman", "Discman", and "Talkman" are trademarks of Sony, and have been applied to a wide range of portable entertainment devices manufactured by the company. Sony continues to use the "Walkman" brand name for most of their portable audio devices, after the "Discman" name for CD players was dropped in the late 1990s. According to Sony, the plural form is "Walkman Personal Stereos", rather than "Walkmans" or "Walkmen" (presumably to preserve their trademark on "Walkman").

In March 2007, Sony extended the Video Walkman brand by launching its first all-digital, flash-based video Walkman, the A800 series, where A stands for "All in one", "Advanced", and "Attractive".

History and design

Cassette-based walkman

The blue-and-silver Walkman TPS-L2 (the first commercially available Walkman) went on sale in Japan on July 1, 1979. In the UK, it came with stereo playback and mini headphone jacks, permitting two people to listen at the same time (though it came with only one pair of MDR-3L2 headphones.). Where the Pressman had the recording button, the Walkman had a "hotline" button which activated a small built-in microphone (the Pressman), partially overriding the sound from the cassette, and allowing one user to talk to the other over the music. The dual jacks and "hotline" button were phased out in the follow-up Walkman II model.

Some devices were also capable of recording. The highest quality Sony Walkman recording cassette deck was the Walkman Professional WM-D6C. It was introduced in 1984, and became an instant success because of its long battery life. Its audio quality left something to be desired when compared with professional audio equipment, but its portability and low price countered this notion. Many magazines began to compare it with non-portable cassette decks. Unusual for a portable device, the Walkman Professional had bright LED recording level meters and manual control of recording levels. It was equipped with quartz direct drive capstan, and amorphous head. Powered by local AC mains or by 4 AA batteries (compared with 2 for most Walkman models), it was widely used by journalists and developed a following among hi-fi enthusiasts; unusual for a consumer-electronics product, it was in production, unchanged, for almost 20 years. One of Henry Rollins' early spoken word CDs was recorded with a Walkman Pro.

Amid fierce competition, primarily from Toshiba (the Walky), Aiwa (the CassetteBoy) and Panasonic, by the late 80s, Sony upped the ante once again by creating the playback-only WM-DD9, launched in 1989 during the 10th anniversary of the Walkman (five years after the WM-D6C) and became the holy grail for a niche group of cassette Walkman collectors. It is the only auto-reverse Walkman in history to use a two-motor, quartz-locked, disc drive system similar to high-end home cassette decks to ensure accurate tape speed for both sides of playback (only one motor operates at a time depending on the side of the tape being played). Power consumption was improved by requiring only either one AA battery or one gumstick-type rechargeable, with optional AC adaptor input. It is also equipped with a tight gap amorphous tape head capable of reproducing the full 20–20,000 Hz frequency range, a gold plated headphone jack, and a 2 mm thick aluminum body. Sony made this model with only sound quality in mind, therefore it contains no gimmick features such as in-line remote control, music search, or LCD readout. Its only features are Dolby B/C noise reduction decoding, Mega Bass/DBB bass boost, tape type select, and two auto reverse modes.

By the late 1990s, the cassette-based Walkman was generally passed over in favor of the emerging digital technologies of CD, DAT and MiniDisc. After 2000, cassette-based Walkman products (and their clones) were approaching technological obsolescence as the cassette format was gradually phased out. However, Sony still continues to make cassette-based Walkman personal stereos today.

Every five years since the Walkman personal stereo was born in 1979 until 1999, Sony would celebrate by coming out with an anniversary cassette model on July 1. Each anniversary model carries a different theme while retaining some characteristics of previous anniversary models: WM-701S (user friendliness theme with remote control and slim sterling silver plated body — 1989), WM-EX1HG (efficiency theme with long battery life and pop-up eject — 1994), WM-WE01 (wireless theme with cordless remote control and cordless earphones — 1999). However, cassette Walkman innovation would come to an end as during its 25th Anniversary, Sony chose to not introduce another limited run cassette model but instead, brought out the hard disk based NW-HD1 in 2004 to officially augur the death of the compact cassette. (Sony did release two anniversary models in 2003, but they were MiniDisc players — see below.) The last play-only cassette Walkman to be introduced (in North America, at least) was the WM-FX290, first sold in 2002, which also featured digital tuning, AM, FM, TV and weather band radio, operating on a single AA battery. In Canada, at least (where, like all portable radios distributed in that country, the WM-FX290 lacked access to TV and weather bands) this device appears to have ceased production as of May, 2006. In August 2006, Sony Canada began selling cassette Walkmans again, but this time they were only offering a basic model, the WM-FX197.

Until early 2009, in spite of the decline of the cassette-based Walkmans, logically operated deluxe models (WM-GX788 etc) had been available in a very few countries, especially in South Korea, Vietnam, and Japan. These models supported a so-called gumstick-type rechargeable battery, offered relatively better sound quality than cheaper models did, and had an automatic tape position selector and auto-reverse function. As of spring 2009, all tape Walkmans except the WM-EX651 have been discontinued in South Korea. In Japan, only a few cheap models (WM-GX202 etc) remain. Many people no longer use cassette tapes for music listening and, in a few countries, cassette tapes are only used for language learning, which is now significantly declining thanks to podcasts from BBC or CNN or trends of (foreign-language learning) publishers which adopt MP3 file services or attached CDs rather than attaching tapes to their publications.

Stereobelt

A portable personal stereo audio cassette player, called Stereobelt, was first invented by the German-Brazilian Andreas Pavel in 1972. Pavel filed a patent for his Stereobelt in Italy in 1977, followed by patent applications in the U.S., Germany, the United Kingdom and Japan by the end of 1978.

In 1979, Sony began selling the popular Walkman, and in 1980 started legal talks with Pavel regarding a royalty fee. In 1986 Sony finally agreed to pay royalties to Pavel, but only for sales in Germany, and only for a few models, and refused to acknowledge him as the inventor of the device.

In 2001, Pavel threatened Sony with legal suits in every country in which he had patented his invention. The corporation agreed to resume talks with Pavel and a settlement was finally reached in 2003. The exact settlement fee is a closely guarded secret but European press accounts said that Pavel received a cash settlement for damages in excess of $10,000,000 and is now also receiving royalties on some Walkman sales. The settlement also includes a clause which will prevent Pavel from bringing future law suits.

The settlement grants Pavel the recognition from Sony that he was the original inventor of the personal stereo; this apparently could only be achieved after the death of Morita, the founder of Sony and its previously recognised creator.

However, because of Sony's strong publicity, the word Walkman is now part of pop culture, and is used more often than the generic term "persona

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