Audio and music data transmission medium and transmission protocol
US8712562B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 15, 2003 |
| Grant date | Apr 29, 2014 |
| Priority date | — |
| Expiry date | Jan 27, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04H60/04
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A transmission medium and protocol is provided for bi-directional communication between an audio system and a peripheral device. The transmission medium includes a communication medium for communicating data and a communication medium for communicating a clock signal that corresponds to a transmission rate of bits on the other communication media. By transmitting the clock signal on a separate communication medium from the data, clock recovery is avoided. There may be multiple clock domains. By having multiple clock domains, multiple sample rates can be supported. Synchronization information is embedded in the signal by using run length limiting markers between the data for each channel and a synchronization word having more consecutive zero bits than the number of bits for each channel. One or more channels may be dedicated to providing control and status information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.