High speed data communication in a vehicle

• US 9,509,339 B2
• Filed: 06/03/2014
• Issued: 11/29/2016
• Est. Priority Date: 06/03/2014
• Status: Active Grant

• Current Assignee: GM Global Technology Operations LLC (General Motors Company)
• Original Assignee: GM Global Technology Operations LLC (General Motors Company)
• Inventors: Petrucci, David R., Massoll, Charles A., Heiden, David, Carper, Duane S.
• Primary Examiner(s): Huang, David S
• Application Number:
  US14/294,659
• Publication Number:
  US 20150343966A1
• Time in Patent Office: 910 Days
• Field of Search: 375/257, 375/357, 375/395, 375/316, 370/241
• US Class Current: 1/1
• CPC Class Codes: H03M 9/00 Parallel/series conversion or vice versa digital stores in which the information is moved stepwise per se G11C19/00
• CPC Class Codes: H04J 3/00 Time-division multiplex systems H04J14/00 takes precedence; relay systems H04B7/14; selecting techniques H04Q
• CPC Class Codes: H04L 25/02 Details ; arrangements for supplying electrical power along data transmission lines systems for transmitting signals via power distribution lines H04B3/54
• CPC Class Codes: H04L 25/0272 Arrangements for coupling to multiple lines, e.g. for differential transmission

Abstract

A system and method is provided for the high-speed transfer of data within a vehicle. The method includes the steps of: receiving at a high-speed transmitter non-video parallel data from a plurality of data sources in the vehicle; sampling the parallel data received from the plurality of data sources; serializing at the high-speed transmitter the parallel data from the plurality of data sources; and then transmitting via a low voltage differential signaling (LVDS) the parallel data to a high-speed receiver in the vehicle for deserialization while performing a sample and hold function as new parallel data is received at the high-speed transmitter during transmission, wherein the high-speed transmitter is configured to provide video data.

Claims

1. A method of transferring data in a vehicle, comprising the steps of:

receiving at a high-speed transmitter non-video parallel data from a plurality of data sources in the vehicle;

sampling the parallel data received from the plurality of data sources;

serializing at the high-speed transmitter the sampled parallel data from the plurality of data sources; and

then

transmitting via a low voltage differential signaling (LVDS) the serialized parallel data to a high-speed receiver in the vehicle for deserialization while performing a sample and hold function as new parallel data is received at the high-speed transmitter during transmission, wherein the high-speed transmitter is configured to provide video data.

2. The method of claim 1, wherein the transmitter is a serializer and the receiver is a deserializer.

3. The method of claim 1, wherein the serialized parallel data is transmitted over a differential serial link, and further comprising determining at the high-speed receiver a differential electrical parameter based on the transmission over the serial link.

4. The method of claim 1, wherein the high-speed transmitter has a plurality of input parallel ports for receiving the parallel data from the plurality of data sources, wherein the high-speed receiver has a plurality of output parallel ports corresponding to the plurality of input parallel ports of the high-speed transmitter.

5. The method of claim 4, wherein a portion of the parallel data received at the high-speed transmitter includes first parallel data and second parallel data, wherein the first parallel data is received at one parallel port and the second parallel data is received at another parallel port, wherein the second parallel data corresponds to the first parallel data for redundancy.

6. The method of claim 5, wherein the second parallel data is one of a mirror of the first parallel data or an inversion of the first parallel data.

7. The method of claim 5, further comprising:

after the transmitting step, receiving the serialized parallel data at the high-speed receiver;

deserializing the serialized parallel data at the high-speed receiver; and

then

validating the deserialized parallel data.

8. The method of claim 7, wherein the validating step further comprises determining the integrity of at least the deserialized first parallel data by comparing it to the deserialized second parallel data.

9. The method of claim 1, wherein the receiving, sampling, serializing, and transmitting steps are performed without the use of a processing unit.

10. The method of claim 1, wherein at least one of the plurality of data sources is coupled to a processing unit that comprises a processor coupled to memory, the processing unit also coupled to the high-speed transmitter.

11. The method of claim 10, wherein the serializing step is controlled using the processor, wherein the processor is in communication with a data sampling engine, the high-speed transmitter, or both the data sampling engine and the high-speed transmitter.

12. The method of claim 1, wherein the plurality of data sources includes an array of sensors coupled to one or more data sampling engines.

13. The method of claim 1, wherein the plurality of data sources includes an array of multi-band antennas.

14. The method of claim 1, wherein the plurality of data sources includes an array of common-band antennas.

15. A method of transferring data in a vehicle, comprising the steps of:

receiving one or more pairs of non-video data streams at a serializer in the vehicle from one or more of a plurality of data sources, wherein a pair of non-video data streams includes first data received via a first port of the serializer and second data received at a second port of the serializer, wherein the first and second data are associated with one of the plurality of data sources, wherein the serializer is configured to provide video data;

serializing the one or more pairs of non-video data streams at the serializer;

transmitting the one or more pairs of serialized non-video data streams to a deserializer in the vehicle over a differential serial link;

sampling and holding one or more new pairs of non-video data streams received from the one or more of a plurality of data sources during the serializing step, the transmitting step, or both;

deserializing the transmitted one or more pairs of serialized non-video data streams; and

error-checking the deserialized non-video data streams, wherein the error-checking includes comparing the first data to the second data using a mirroring technique or an inversion technique.

16. The method of claim 15, wherein the plurality of data sources include:

one or more vehicle sensors, an array of vehicle multi-band antennas, and an array of vehicle single-band antennas.

17. The method of claim 15, wherein the differential serial link is a twisted wire pair, wherein the deserializing step further comprises determining a differential electrical parameter based on the transmission over the serial link.