Socionext Inc. has developed the world's first demodulator IC that is compatible both with the Advanced Wide-Band Digital Satellite Broadcasting (ISDB-S3) and ITU-T Recommendation J.183 based channel bonding technology. The new SC1501A can receive both the direct signals from the satellites and the retransmission of satellite signals through cable systems (IF pass-through, transmodulation) for 4K and 8K broadcasting.


A digital receiver system that can handle various kinds of transmission schemes is essential to promote the wider use of 4K and 8K broadcasting. Socionext has developed SC1501A, a demodulator IC that is compatible both with the Advanced Wide-Band Satellite Broadcasting (ISDB-S3), and channel bonding technology based on ITU-T J.183. The chip is capable of receiving various form of signals including direct signals from the satellites, as well as retransmission through cables such as IF pass through and transmodulation. Equipment makers can utilize the SC1501A in combination with Socionext's codec and digital TV SoC products to easily develop receiver systems such as TVs, recorders, and set-top-boxes.

The experimental retransmission of Advanced Wide-Band Digital Satellite Broadcasting through the cable TV system will be jointly conducted by Nippon Hoso Kyokai (NHK), KDDI Corporation, Jupiter Telecommunications Co., Ltd. (J:COM), and Japan Digital Serve Corporation (JDS). Socionext has developed a prototype of receiver equipped with the SC1501A, to be used in the cable retransmission experiment. In addition to the prototype receiver used for the experiment by the four companies, Socionext has developed another prototype designed only for direct satellite signal. These two prototype receivers are to be used as the reference models for equipment makers, to help expand Socionext's visual systems businesses.