Development of a Hybrid Transmission Technology Capable of Transmitting Data and Power via a Single Cable by SONY
Sony has made an announcement today on development of a “single wire interface technology” facilitating transmission of both internal data as well as power supply with a single cable that will result in improved design flexibility and reliability with mobile devices with movable mechanisms, through streamlining internal wiring of a mobile devices via single cable (copper wire). Up to now, the video, audio and control signals as well as the power transmission is done over several dozen cables such as hinges or rotating parts, not to mention the multitude of extra wiring to accommodate today’s full featured mobile devices with high resolution displays.
Sony’s new technology is capable of bi-directional transmission of several types of signals including video, audio as well as control signals through use of time division duplex and multiplex. Additionally, the DC power is supplied on the same signal cable. Sony’s unique encoding technology with DC balance is capable of transmitting both DC power supply and high speed data within a limited frequency bandwidth. To achieve a practical implementation of this new technology, Sony has teamed up with ROHM Co., Ltd for the joint development and technical validation for the analog portion of the test chip, where Sony will grant ROHM a license for IP of digital portion of this new technology, for development of a single chip that includes both the analog and digital portions.