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Sony Unveils Half-Length Memory Stick for Mobile Phones
Posted: 21-Apr-2000 [Source: Nikkei Electronics]

[This postage stamp size memory cartridge from Sony is designed for use in mobile phones and wrist watch information devices.]

Tokyo -- "Sony Corp. announced the Memory Stick Duo (a tentative name) that is about half the size of its existing Memory Stick, a compact memory card that uses flash EEPROM as recording media.

"Sony's product will debut in the first quarter of 2000. The Tokyo-based company explained it was developed for use in mobile phones and wristwatch-type information devices equipped with compact cards.

"The new product measures 20mm by 31mm by 1.6mm, almost equivalent to a postage stamp and has about 60 percent of the cubic volume of an SD Memory Card, a rival media to the Memory Stick.

"When the attached cartridge is connected, the Memory Stick Duo measures 21.5mm by 50mm by 2.8mm. That's the same size as the standard Memory Stick and it can be used with the conventional Memory Stick-based products.

"In the standardization battle of compact memory cards, the mobile phone market is considered crucial to determining the winner. However, Sony was running behind those who promote SD Memory Card.

"Japan's leading mobile phone makers such as Matsushita Communication Industrial Co., Ltd. and NEC Corp. have already decided to employ the SD Memory Card for their phones. Furthermore, Sony is stalled in a joint test with NTT DoCoMo for the company's planned music-distribution service. Other mobile phone makers also have pointed out that the Memory Stick is difficult to use for mobile phones due to its relatively large size.

"Sony expects the Memory Stick Duo to respond to such requests of mobile phone makers.


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