Method and apparatus to facilitate message transmission and reception using different transmission characteristics

• US 9,148,409 B2
• Filed: 06/30/2005
• Issued: 09/29/2015
• Est. Priority Date: 06/30/2005
• Status: Active Grant

• Current Assignee: The Chamberlain Group LLC
• Original Assignee: The Chamberlain Group, Inc. (The Chamberlain Group LLC)
• Inventors: Fitzgibbon, James J., Laird, Edward T.
• Primary Examiner(s): Hirl, Joseph P
• Assistant Examiner(s): TRUVAN, LEYNNA THANH
• Application Number:
  US11/172,525
• Publication Number:
  US 20070005806A1
• Time in Patent Office: 3,743 Days
• Field of Search: 709/201, 709223-225, 709/232, 709/238, 370/230, 370/235, 370/235.1, 370/308, 370/351, 705/51, 705/58, 713/165, 713/170, 726/3
• US Class Current: 1/1
• CPC Class Codes: G07C 2009/00412 the transmitted data signal being encrypted
• CPC Class Codes: G07C 2009/00476 dynamically
• CPC Class Codes: G07C 2009/00492 whereby the code is a rolling code
• CPC Class Codes: G07C 2009/00555 comprising means to detect or avoid relay attacks
• CPC Class Codes: G07C 9/00309 operated with bidirectional data transmission between data carrier and locks
• CPC Class Codes: H04L 63/0428 wherein the data content is protected, e.g. by encrypting or encapsulating the payload
• CPC Class Codes: H04L 63/123 received data contents, e.g. message integrity
• CPC Class Codes: H04L 63/1475 Passive attacks, e.g. eavesdropping or listening without modification of the traffic monitored

Abstract

Upon providing (101) message content (such as a remote control instruction) to be transmitted, and in conjunction with provision (102) of a plurality of different transmission characteristics (as correspond, for example, to different types of transmission) and a corresponding plurality of correlated recovery identifiers (103), a particular transmission characteristic is selected (104) and used to transmit (105) a joint message. n particular, in a preferred approach, the selected transmission characteristic (106) is used when transmitting at least a portion of the message content portion of the joint message while another part of the joint message carries the recovery identifier to thereby facilitate selection of an appropriate reception technique by a receiver when receiving the joint message.

Claims

1. A method comprising:

selecting a particular transmission characteristic from among a plurality of different transmission characteristics to provide a selected transmission characteristic;

selecting a particular recovery identifier correlated to the selected transmission characteristic from a plurality of different recovery identifiers, wherein at least a portion of individual ones of the recovery identifiers is correlated to a given corresponding one of the plurality of different transmission characteristics; and

transmitting from a transmitter a joint message comprising;

the selected recovery identifier; and

a message content;

wherein at least a portion of the joint message as comprises the message content is transmitted using the selected transmission characteristic, and wherein the joint message is configured to allow a receiver to configure itself in response to receipt of the joint message according to the selected transmission characteristic correlated to the recovery identifier to allow the receiver to receive the message content of the joint message,

wherein the selecting the particular transmission characteristic comprises selecting the particular transmission characteristic based at least in part on at least a portion of the message content.

2. The method of claim 1 wherein the message content comprises remote control signaling.

3. The method of claim 1 wherein selecting the particular transmission characteristic from the plurality of different transmission characteristics comprises selecting at least one of:

a plurality of candidate data rates;

a plurality of candidate spread spectrum practices;

a plurality of candidate carrier modulations;

a plurality of candidate carrier frequencies;

a plurality of candidate joint message formats;

a plurality of candidate data orders;

a plurality of candidate data inversion patterns.

4. The method of claim 1 wherein selecting a particular recovery identifier of the plurality of different recovery identifiers comprises selecting at least one of:

a particular data rate identifier;

a particular spread spectrum practice identifier;

a particular carrier modulation identifier;

a particular carrier frequency identifier;

a particular joint message format identifier;

a particular data order identifier;

a particular data inversion pattern identifier.

5. The method of claim 1 wherein transmitting the joint message comprises transmitting a contiguous aggregation of the message content and the recovery identifier as uniquely corresponds to the selected transmission characteristic.

6. The method of claim 5 wherein the joint message further comprises at least a first field comprising the message content and a second field comprising the selected recovery identifier.

7. The method of claim 6 wherein the first field and second field are discrete with respect to one another.

8. The method of claim 6 wherein the first field and the second field are at least partially interleaved with one another.

9. The method of claim 1 wherein transmitting a joint message comprises transmitting a plurality of discrete messages.

10. The method of claim 9 wherein the plurality of discrete messages are separated from one another by at least one of:

time;

carrier characteristics;

specific bit patterns;

specific quantity of bits.

11. The method of claim 1 wherein the message content comprises, at least in part, an identifier for at least one of:

a transmitting platform;

a receiving platform;

a communication system;

a communication system user.

12. An apparatus comprising:

a transmitter capable of various selectable types of transmission, wherein the various selectable types of transmission differ from one another as a function, at least in part, of corresponding transmission characteristics, and wherein the transmitter is configured to transmit a joint message comprising a message content transmitted according to a selected at least one of the transmission characteristics, selected based at least in part on at least a portion of the message content, and with at least one specific recovery content indicator transmitted according to at least one different transmission characteristic, the at least one specific recovery identifier configured to allow a receiver to configure itself in response to receipt of the joint message to receive the message content of the joint message, wherein a plurality of recovery content indicators each individually has at least a portion that corresponds to a given corresponding one of the transmission characteristics; and

a joint message formatter having an input operably coupled to receive the message content and the plurality of recovery content indicators and having a joint message output operably coupled to the transmitter and configured to output both the message content and the at least one specific recovery content indicator as corresponds to a presently selected at least one of the transmission characteristics.

13. The apparatus of claim 12 wherein the specific recovery content indicator comprises a portion of the message content.

14. The apparatus of claim 12 wherein the message content comprises remote control signaling.

15. The apparatus of claim 12 wherein the transmission characteristics comprise at least one of:

a plurality of candidate data rates;

a plurality of candidate conversion symbol sets;

a plurality of candidate spread spectrum practices;

a plurality of candidate carrier modulations;

a plurality of candidate bit inversion patterns;

a plurality of candidate carrier frequencies;

a plurality of candidate bit interleaving patterns;

a plurality of candidate bit patterns;

a plurality of candidate joint message formats.

16. The apparatus of claim 12 wherein the recovery content indicator comprises at least one of:

a particular symbol conversion set identifier;

a particular spread spectrum practice identifier;

a particular carrier modulation identifier;

a particular bit inversion pattern identifier;

a particular carrier frequency identifier;

a particular bit interleaving pattern identifier;

a particular bit pattern identifier;

a particular joint message format identifier;

a particular data order identifier.

17. The apparatus of claim 12 wherein the joint message output is configured to provide a contiguous combination of the message content and the specific recovery content indicator.

18. The apparatus of claim 17 wherein the joint message output is further configured to provide at least a first field comprising the message content and a second field comprising the specific recovery content indicator.

19. The apparatus of claim 18 wherein the first field and second field are discrete with respect to one another.

20. The apparatus of claim 18 wherein the first field and the second field are at least partially interleaved with one another.

21. The apparatus of claim 12 wherein the joint message output is configured to provide a plurality of discrete messages.

22. A method comprising:

receiving at a receiver in a first particular way a transmission of a recovery content portion of a joint message, wherein the recovery content corresponds to a selected transmission characteristic selected based at least in part on a message content portion of the joint message;

selecting at the receiver in response to receipt of the joint message a second particular way of receiving a transmission of the message content portion of the joint message as a function, at least in part, of the received recovery content;

the receiver using the second particular way to receive that portion of the joint message that comprises the message content.

23. The method of claim 22 wherein the joint message is a single contiguous message.

24. The method of claim 22 wherein the joint message comprises receiving a plurality of discrete transmissions.

25. The method of claim 22 wherein the message content comprises remote control signaling.

26. The method of claim 22 wherein the first particular way and the second particular way individually comprise at least one of:

selecting a particular data rate from amongst a plurality of candidate data rates;

using a particular set of conversion symbols as selected from amongst a plurality of candidate sets;

selecting a particular spread spectrum practice from amongst a plurality of candidate sets;

selecting a particular carrier demodulation from amongst a plurality of candidate carrier demodulations;

selecting a particular bit inversion pattern from amongst a plurality of candidate patterns;

selecting a particular carrier frequency from amongst a plurality of candidate carrier frequencies;

selecting a particular bit de-interleaving pattern from amongst a plurality of candidate patterns;

selecting a particular joint message format from amongst a plurality of candidate formats;

selecting a particular data inversion patterns from amongst a plurality of candidate patterns.

27. The method of claim 22 wherein the recovery content comprises at least one of:

a symbol conversion set identifier;

a spread spectrum practice identifier;

a carrier demodulation identifier;

a bit inversion pattern identifier;

a carrier frequency identifier;

a bit de-interleaving pattern identifier;

a joint message format identifier;

a data pattern inversion pattern identifier.

28. The method of claim 22 wherein receiving a transmission of a joint message comprises receiving a transmission of a joint message wherein the joint message comprises at least a first field comprising the message content and a second field comprising the recovery content.

29. The method of claim 28 wherein the first field and second field are discrete with respect to one another.

30. The method of claim 28 wherein the first field and the second field are at least partially interleaved with one another.

31. The method of claim 28 wherein receiving a transmission of a joint message comprises receiving a plurality of transmitted messages that comprise, when aggregated, the joint message.

32. The method of claim 31 wherein the plurality of transmitted messages are separated from one another by at least one of:

time;

carrier characteristics;

specific bit patterns.

33. The method of claim 22 wherein the message content comprises, at least in part, an identifier for at least one of:

a transmitting platform;

a receiving platform;

a communication system;

a communication system user.

34. An apparatus comprising:

a receiver capable of receiving various selectable types of transmissions, wherein the various selectable types of transmissions differ from one another as a function, at least in part, of corresponding transmission characteristics, and wherein the receiver is configured to receive a joint message comprising recovery content and message content and to receive the message content portion of the joint message using a selected one of the various selectable types of transmissions identified by the recovery content, the selected one of the various selectable types of transmissions selected based at least in part on at least a part of the message content;

a transmission characteristic selector operably coupled to a control input of the receiver, wherein the transmission characteristic selector is responsive to a recovery content input such that the transmission characteristic selector configures the receiver according to the recovery content within the joint message in response to receipt of the joint message, wherein the recovery content corresponds to the transmission characteristic;

a joint message processor operably coupled to the receiver and to the recovery content input of the transmission characteristic selector, wherein the joint message processor is configured to extract recovery content from the joint message.

35. The apparatus of claim 34 wherein the message content comprises remote control signaling.

36. The apparatus of claim 34 wherein the transmission characteristics comprise at least one of:

a plurality of candidate data rates;

a plurality of candidate conversion symbol sets;

a plurality of candidate spread spectrum practices;

a plurality of candidate carrier modulations;

a plurality of candidate bit inversion patterns;

a plurality of candidate carrier frequencies;

a plurality of candidate bit interleaving patterns;

a plurality of candidate bit patterns;

a plurality of candidate joint message formats.

37. The apparatus of claim 34 wherein the recovery content comprises at least one of:

a particular symbol conversion set identifier;

a particular spread spectrum practice identifier;

a particular carrier modulation identifier;

a particular bit inversion pattern identifier;

a particular carrier frequency identifier;

a particular bit interleaving pattern identifier;

a particular bit pattern identifier;

a particular joint message format identifier;

a particular data order identifier.

38. The apparatus of claim 34 wherein the receiver comprises means for receiving a transmission of a joint message comprising at least a first field comprising the message content and a second field comprising the recovery content.

39. The apparatus of claim 38 wherein the first field and second field are discrete with respect to one another.

40. The apparatus of claim 38 wherein the first field and the second field are at least partially interleaved with one another.

41. The apparatus of claim 38 wherein the transmission of a joint message comprises a plurality of transmitted messages that comprise, when aggregated, the joint message.

42. The apparatus of claim 41 wherein the plurality of transmitted messages are separated from one another by at least one of:

time;

carrier characteristics;

specific bit patterns.

43. The apparatus of claim 34 wherein the message content comprises, at least in part, an identifier for at least one of:

a transmitting platform;

a receiving platform;

a communication system;

a communication system user.

44. A method for use with a receiver that is configured and arranged to compatibly receive and process a transmitted joint message, wherein:

at least a portion of the joint message comprises message content that is transmitted using a selected transmission characteristic as has been selected from amongst a plurality of different transmission characteristics based at least in part on at least a portion of the message content;

at least a portion of the joint message comprises a recovery identifier that is transmitted using a different transmission characteristic, wherein the recovery identifier corresponds to the selected transmission characteristic;

the method comprising;

at a transmitter;

providing a message that will be compatibly received and processed by the receiver as the transmitted joint message for the receiver to configure itself to receive the message content of the joint message according to the recovery identify in response to receipt of the transmitted joint message;

transmitting the message to the receiver.

45. The method of claim 44 wherein transmitting the message to the receiver comprises serially transmitting data elements as comprise the message.

46. The method of claim 45 wherein serially transmitting the data elements as comprise the message comprises serially transmitting the data elements via a wireless connection.

47. A method comprising:

selecting at a transmitter a particular transmission characteristic from among a plurality of different transmission characteristics from the group consisting of at least one of a particular data order or a particular data inversion pattern to provide a selected transmission characteristic selected based at least in part on at least a portion of message content;

selecting at the transmitter a particular recovery identifier correlated to the selected transmission characteristic from a plurality of different recovery identifiers, wherein the recovery identifiers comprise at least one of a particular data order identifier or a particular data inversion pattern identifier, wherein at least a portion of individual ones of the recovery identifiers is correlated to a given corresponding one of the plurality of different transmission characteristics; and

transmitting from the transmitter a joint message comprising;

the selected recovery identifier; and

the message content;

wherein at least a portion of the joint message as comprises the message content is transmitted using the selected transmission characteristic, and

wherein the joint message is configured to allow a receiver to configure itself in response to receipt of the joint message according to the selected recovery identifier to allow the receiver to receive the message content of the joint message.

48. A portable movable barrier remote control transmitter comprising:

a transmitter configured to communicate with a movable barrier operator, and capable of various selectable types of transmission, wherein the various selectable types of transmission differ from one another as a function, at least in part, of corresponding transmission characteristics, and wherein a plurality of recovery content indicators individually has at least a portion that corresponds to a given corresponding one of the transmission characteristics; and

a joint message formatter having an input operably coupled to receive message content and the plurality of recovery content indicators and having a joint message output operably coupled to the transmitter to provide a joint message comprising both the message content and the at least one specific recovery content indicator as corresponds to a presently selected at least one of the transmission characteristics selected based at least in part on at least a portion of the message content,

wherein the joint message is configured to allow a receiver to configure itself in response to receipt of the joint message according to the presently selected at least one of the transmission characteristics to allow the receiver to receive the message content of the joint message.

49. The portable movable barrier remote control transmitter of claim 48, wherein the transmitter is configured to transmit the message content according to the transmission characteristic selected for the message content and to transmit at least one specific recovery content indicator according to at least one transmission characteristic that is different from the transmission characteristic that is selected for the message content.