LOW LATENCY TRANSMISSION SYSTEMS AND METHODS FOR LONG DISTANCES IN SOUNDWIRE SYSTEMS

摘要

Low latency transmission systems and methods for long distances in SOUNDWIRE systems are disclosed. In an exemplary aspect, a SOUNDWIRE sub-system is coupled to a long cable through a bridge. The bridge converts SOUNDWIRE signals to signals for transmission over the long cable and converts the signals from the long cable to the SOUNDWIRE signals for transmission in the SOUNDWIRE sub-system. Conversion between signal types may include concatenating signals of a similar type into a group that is serially transmitted over the long cable. Concatenation of bit slots in this manner consumes minimal overhead in bus turnaround, thereby reducing latency. In further aspects, the functionality of the bridge may be incorporated into a headset or a mobile terminal.

主权项

1. A bridge comprising:
a first interface configured to be coupled to a digital audio cable; a second interface configured to be coupled to a SOUNDWIRE communication bus; and a control system configured to:
receive SOUNDWIRE compliant signals from the second interface and concatenate bit slots from a single source;transmit the concatenated bit slots through the first interface onto the digital audio cable;receive second concatenated bit slots from the digital audio cable; andsplit the second concatenated bit slots for transmission on the SOUNDWIRE communication bus.