Sony Develops "One-Way Interface Technology in Equipment" to Change the Design of Mobile Devices

Sony announced today that it has developed "one-wire interface technology in equipment" that drastically reduces the number of wiring of mobile devices, greatly increasing the degree of freedom of body design. This not only makes it possible to expect mobile devices with more distinctive designs to appear than ever before, it will also improve durability.

In addition, the image above is a mobile phone that Sony Ericsson is releasing as au's 2010 summer model "BRAVIA Phone S004It is the thing of.

Details are as below.
Sony Japan | News Releases | Develop technology that enables data transmission and power supply within equipment with 1 cable

According to a press release announced by Sony, the company has developed a signal / power integrated transmission technology "one-wire interface technology in equipment" that enables data transmission and power supply to be performed with a single cable.

As the performance of mobile devices increases and the image quality of displays increases, there is a tendency for the number of wirings in the device to increase due to an increase in the amount of data transmission, the problem that the connector for the interface becomes large and the folding of the cable becomes difficult There was, "One-wire interface technology in equipment" is to make it possible to combine dozens of internal wiring in a single cable.

This technology is said to be able to improve the degree of freedom, reliability and durability of the design of mobile devices with movable mechanism, including folding type, screen rotating type, sliding type mobile phones.

Image diagram of "In-device one-wire interface technology". Conventionally, since only one cable connecting the display unit and the keyboard unit, which was necessary for each application such as video, audio, control signal, power supply, etc., is required, the degree of freedom in designing the movable section is improved.


Circuit diagram. In addition to developing proprietary time division multiplexing method to transmit packets including video, audio, and control signals with a single cable, by incorporating a mechanism to hold synchronization individually, different signals including power supply It is capable of bidirectional transmission at high transmission speed (940 Mbps).


In addition, Sony licensed the IP of the digital division developed by Sony against ROHM, which has been proven in the peripheral technology field, for the early commercialization of "one-wire interface technology in equipment" and combined analog and digital We are planning to advance both circuits of the transmitting side and the receiving side into one chip.

Ultra thin organic EL display wrapped around a penAnd for mobile phones and mobile game machinesUltra thin and highly durable new touch panel, Which leads to miniaturization and cost reduction of electronic equipmentHigh speed wireless transmission technology in equipment", It is possible to realize a terabyte-class recording capacity with one diskThe world's first blue-violet ultrashort pulse semiconductor laserAlthough Sony announces technologies that seems to be a foundation that considers future things such as, etc., I would like to look forward to the day when these technologies are combined and a new product is born.