High data rate interface apparatus and method

• US 8,645,566 B2
• Filed: 03/24/2005
• Issued: 02/04/2014
• Est. Priority Date: 03/24/2004
• Status: Expired due to Fees

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Anderson, Jon James, Steele, Brian, Wiley, George Alan, Shekhar, Shashank
• Primary Examiner(s): Patel, Haresh N
• Application Number:
  US11/089,643
• Publication Number:
  US 20050259670A1
• Time in Patent Office: 3,239 Days
• Field of Search: 709231-236, 709217-228, 709200-203
• US Class Current: 709/236
• CPC Class Codes: H04L 65/1069 Session establishment or de-establishment
• CPC Class Codes: H04L 65/1101 Session protocols
• CPC Class Codes: H04L 65/61 for supporting one-way streaming services, e.g. Internet radio
• CPC Class Codes: H04L 65/80 Responding to QoS
• CPC Class Codes: H04L 67/303 Terminal profiles
• CPC Class Codes: H04L 69/18 Multiprotocol handlers, e.g. single devices capable of handling multiple protocols
• CPC Class Codes: H04L 69/22 Parsing or analysis of headers
• CPC Class Codes: H04L 69/24 Negotiation of communication capabilities
• CPC Class Codes: H04M 1/72409 by interfacing with external accessories hands-free H04M1/60
• CPC Class Codes: H04M 1/72412 using two-way short-range wireless interfaces
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

A data interface for transferring digital data between a host and a client over a communication path using packet structures linked together to form a communication protocol for communicating a pre-selected set of digital control and presentation data. The signal protocol is used by link controllers configured to generate, transmit, and receive packets forming the communications protocol, and to form digital data into one or more types of data packets, with at least one residing in the host device and being coupled to the client through the communications path. The interface provides a cost-effective, low power, bi-directional, high-speed data transfer mechanism over a short-range “serial” type data link, which lends itself to implementation with miniature connectors and thin flexible cables which are especially useful in connecting display elements such as wearable micro-displays to portable computers and wireless communication devices.

Claims

1. A method for determining forward link integrity in a mobile display digital interface (MDDI) communication system, the method comprising the steps of:

a host continuously monitoring a forward link CRC error count and a forward CRC error in a client, the MDDI communication system comprising the host and the client, both the host and the client comprising a MDDI controller and a connector;

adjusting operational link parameters by the host based on the monitored forward link CRC error count; and

the host receiving CRC forward link error count from the client over a MDDI link and periodically sending a reverse link encapsulation packet to the client over the MDDI link comprising turn around and reverse data packets information, the MDDI link supporting a high rate digital data transfer rate using low power signals.

2. The method of claim 1 wherein the step of the host continuously monitoring comprises the host requesting the forward link CRC error count via a reverse link flag.

3. The method of claim 1 further comprising the step of transmitting a client request and status packet from the client to the host comprising a number of CRC forward link errors.

4. The method of claim 3 wherein the number of CRC forward link errors comprise the CRC error count from a first client request and status packet transmission to a second client request and status packet transmission.

5. The method of claim 3 wherein the number of CRC forward link errors comprise the CRC error count from a time of powering on the client to the transmission of the client request and status packet.

6. A system for determining forward link integrity in a mobile display digital Interface (MDDI) communication system, the system comprising:

a processor;

means for continuously monitoring a forward link CRC error count and a forward CRC error in a client by a host in the processor, the MDDI communication system comprising the host and the client, both the host and the client comprising a MDDI controller and a connector;

means for adjusting operational link parameters by the host based on the monitored forward link CRC error count in the processor; and

the host receiving CRC forward link error count from the client over a MDDI link and periodically sending a reverse link encapsulation packet to the client over the MDDI link comprising turn around and reverse data packets information, the MDDI link supporting a high rate digital data transfer rate using low power signals.

7. The system of claim 6 wherein the means for continuously monitoring comprises a means for requesting the forward link CRC error count via a reverse link flag by the host.

8. The system of claim 6 further comprising a means for transmitting a client request and status packet from the client to the host comprising a number of CRC forward link errors.

9. The system of claim 8 wherein the number of CRC forward link errors comprise the CRC error count from a first client request and status packet transmission to a second client request and status packet transmission.

10. The system of claim 8 wherein the number of CRC forward link errors comprise the CRC error count from a time of powering on the client to the transmission of the client request and status packet.

11. A non-transitory storage media comprising program instructions which are computer-executable on hardware to implement a determination of forward link integrity in a mobile display digital interface (MDDI) communication system, the storage media comprising:

program instructions that cause a host to continuously monitor a forward link CRC error count and a forward CRC error in a client, the MDDI communication system comprising the host and the client, both the host and the client comprising a MDDI controller and a connector;

program instructions that cause an adjustment of operational link parameters by the host based on monitored forward link CRC error count; and

the host receiving CRC forward link error count from the client over a MDDI link and periodically sending a reverse link encapsulation packet to the client over the MDDI link comprising turn around and reverse data packets information, the MDDI link supporting a high rate digital data transfer rate using low power signals.

12. The storage media of claim 11 wherein the program instructions that cause the host to continuously monitor comprises program instructions that cause the host to request the forward link CRC error count via a reverse link flag.

13. The storage media of claim 11 further comprising program instructions that cause a client request and status packet to be transmitted from the client to the host comprising a number of CRC forward link errors.

14. The storage media of claim 13 wherein the number of CRC forward link errors comprise the CRC error count from a first client request and status packet transmission to a second client request and status packet transmission.

15. The storage media of claim 13 wherein the number of CRC forward link errors comprise the CRC error count from a time of powering on the client to the transmission of the client request and status packet.

16. An apparatus for determining forward link integrity in a mobile display digital interface (MDDI) communication system comprising:

a host operated to;

continuously monitor a forward link CRC error count and a forward CRC error in a client, the MDDI communication system comprising the host and the client, both the host and the client comprising a MDDI controller and a connector;

adjust operational link parameters based on the monitored forward link CRC error count; and

receive CRC forward link error count from the client over a MDDI link and periodically send a reverse link encapsulation packet to the client over the MDDI link comprising turn around and reverse data packets information, the MDDI link supporting a high rate digital data transfer rate using low power signals.

17. The apparatus of claim 16 wherein the host is further adapted to request the forward link CRC error count via a reverse link flag.

18. The apparatus of claim 16 wherein the host is further adapted to receive a client request and status packet from the client comprising a number of CRC forward link errors.

19. The apparatus of claim 18 wherein the number of CRC forward link errors comprise the CRC error count from a first client request and status packet transmission to a second client request and status packet transmission.

20. The apparatus of claim 18 wherein the number of CRC forward link errors comprise the CRC error count from a time of powering on the client to the transmission of the client request and status packet.