Range-sensitive wireless microphone with out-of-range recording feature

• US 8,121,306 B2
• Filed: 08/15/2008
• Issued: 02/21/2012
• Est. Priority Date: 08/17/2007
• Status: Active Grant

• Current Assignee: Watchguard Video Incorporated (Motorola Solutions, Inc.)
• Original Assignee: Enforcement Video Incorporated (Enforcement Technology Group Incorporated)
• Inventors: Cilia, Andrew, Vanman, Robert V.
• Primary Examiner(s): Le, Dung A.
• Application Number:
  US12/228,773
• Publication Number:
  US 20090052685A1
• Time in Patent Office: 1,285 Days
• Field of Search: 381/122, 381/1, 381 11-113, 455 82- 84, 455/101, 455132-133, 384/56, 384/91, 384/113, 384/122, 384/148
• US Class Current: 381/77
• CPC Class Codes: H04R 1/083 Special constructions of mouthpieces

Abstract

A range-sensitive wireless-microphone method includes receiving an audio input, converting the received audio input into digital data, buffering the digital data, and transmitting the buffered digital data. The method also includes determining whether the transmitted buffered data was successfully received, responsive to a determination that the transmitted buffered data was successfully received deleting the transmitted buffered data, and, responsive to a determination that the transmitted buffered data was not successfully received, retaining the transmitted buffered data and repeating the transmitting step. This Abstract is provided to comply with rules requiring an Abstract that allows a searcher or other reader to quickly ascertain subject matter of the technical disclosure. This Abstract is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.

Claims

1. A range-sensitive wireless-microphone method comprising:

receiving an audio input;

converting the received audio input into digital data;

buffering the digital data;

transmitting the buffered digital data;

determining whether the transmitted buffered data was successfully received;

responsive to a determination that the transmitted buffered data was successfully received, deleting the transmitted buffered data; and

responsive to a determination that the transmitted buffered data was not successfully received, retaining the transmitted buffered data and repeating the transmitting step.

2. The range-sensitive wireless-microphone method of claim 1, comprising, responsive to the deleting step, transmitting a subsequently buffered digital data.

3. The range-sensitive wireless-microphone method of claim 1, wherein the step of converting the received audio input into digital data comprises compressing the digital data.

4. The range-sensitive wireless-microphone method of claim 1, wherein the determining step comprises evaluating an acknowledgment received from a receiving device indicating whether the transmitted buffered data was successfully received.

5. The range-sensitive wireless-microphone method of claim 4, wherein the evaluating step comprises using a cyclic redundant checksum.

6. The range-sensitive wireless-microphone method of claim 1, comprising:

calculating a cyclic redundant checksum of the buffered digital data; and

transmitting the cyclic redundant checksum with the buffered digital data.

7. The range-sensitive wireless-microphone method of claim 6, wherein the determining step comprises:

receiving a cyclic redundant checksum calculated by a receiving device of the buffered transmitted digital data; and

comparing the cyclic redundant checksum calculated by the receiving device of the buffered transmitted digital data and the cyclic redundant checksum of the buffered digital data.

8. The range-sensitive wireless-microphone method of claim 7, wherein the determining step comprises, responsive to the cyclic redundant checksum calculated by the receiving device of the buffered transmitted digital data and the cyclic redundant checksum of the buffered digital data being identical, determining that the transmitted buffered data was successfully received.

9. The range-sensitive wireless-microphone method of claim 1, comprising performing a time-stamp operation on the digital data, a time stamp resulting therefrom indicating when the audio input was received.

10. The range-sensitive wireless-microphone method of claim 1, comprising, responsive to a buffer capacity being approached, alerting a user.

11. The range-sensitive wireless-microphone method of claim 1, comprising:

wherein the digital data is buffered at a first quality level; and

responsive to a start command, buffering the digital data at a second quality level that is greater than the first quality level.

12. The range-sensitive wireless-microphone method of claim 11, comprising, responsive to a stop command, discontinuing buffering the digital data at the second quality level.

13. The range-sensitive wireless-microphone method of claim 12, comprising, responsive to a transmit command from a receiving device, transmitting the digital data buffered at the second quality level.

14. The range-sensitive wireless-microphone method of claim 13, wherein the step of transmitting the digital data buffered at the first quality level is performed absent a transmit command from a receiving device.

15. The range-sensitive wireless-microphone method of claim 11, comprising, responsive to the start command, discontinuing buffering the digital data at the first quality level.

16. The range-sensitive wireless-microphone method of claim 11, comprising, following the start command, continuing to buffer the digital data at the first quality level.

17. A range-sensitive wireless-microphone article of manufacture comprising:

at least one computer readable medium;

processor instructions contained on the at least one computer readable medium, the processor instructions configured to be readable from the at least one computer readable medium by at least one processor and thereby cause the at least one processor to cause a personal transceiver device to operate as to perform the following steps;

receiving an audio input;

converting the received audio input into digital data;

buffering the digital data;

transmitting the buffered digital data;

determining whether the transmitted buffered data was successfully received;

responsive to a determination that the transmitted buffered data was successfully received, deleting the transmitted buffered data; and

responsive to a determination that the transmitted buffered data was not successfully received, retaining the transmitted buffered data and repeating the transmitting step.

18. The range-sensitive wireless-microphone article of manufacture of claim 17, the processor instructions configured to cause the at least one processor to cause the personal transceiver device to operate as to perform the following:

responsive to the deleting step, transmitting subsequently buffered digital data.

19. The range-sensitive wireless-microphone article of manufacture of claim 17, wherein the step of converting the received audio input into digital data comprises compressing the digital data.

20. The range-sensitive wireless-microphone article of manufacture of claim 17, wherein the determining step comprises evaluating an acknowledgment received from a receiving device indicating whether the transmitted buffered data was successfully received.

21. The range-sensitive wireless-microphone article of manufacture of claim 20, wherein the evaluating step comprises using a cyclic redundant checksum.

22. The range-sensitive wireless-microphone article of manufacture of claim 17, the processor instructions configured to cause the at least one processor to cause the personal transceiver device to operate as to perform the following:

calculating a cyclic redundant checksum of the buffered digital data; and

transmitting the cyclic redundant checksum with the buffered digital data.

23. The range-sensitive wireless-microphone article of manufacture of claim 22, wherein the determining step comprises:

receiving a cyclic redundant checksum calculated by a receiving device of the buffered transmitted digital data; and

comparing the cyclic redundant checksum calculated by the receiving device of the buffered transmitted digital data and the cyclic redundant checksum of the buffered digital data.

24. The range-sensitive wireless-microphone article of manufacture of claim 23, wherein the determining step comprises, responsive to the cyclic redundant checksum calculated by the receiving device of the buffered transmitted digital data and the cyclic redundant checksum of the buffered digital data being identical, determining that the transmitted buffered data was successfully received.

25. The range-sensitive wireless-microphone article of manufacture of claim 17, the processor instructions configured to cause the at least one processor to cause the personal transceiver device to operate as to perform the following:

performing a time-stamp operation on the digital data, a time stamp resulting therefrom indicating when the audio input was received.

26. The range-sensitive wireless-microphone article of manufacture of claim 17, the processor instructions configured to cause the at least one processor to cause the personal transceiver device to operate as to perform the following:

responsive to a buffer capacity being approached, alerting a user.

27. The range-sensitive wireless-microphone article of manufacture of claim 17, the processor instructions configured to cause the at least one processor to cause the personal transceiver device to operate as to perform the following:

wherein the digital data is buffered at a first quality level; and

responsive to a start command, buffering the digital data at a second quality level that is greater than the first quality level.

28. The range-sensitive wireless-microphone article of manufacture of claim 27, the processor instructions configured to cause the at least one processor to operate as to cause the personal transceiver device to perform the following:

responsive to a stop command, discontinuing buffering the digital data at the second quality level.

29. The range-sensitive wireless-microphone article of manufacture of claim 28, the processor instructions configured to cause the at least one processor to cause the personal transceiver device to operate as to perform the following:

responsive to a transmit command from a receiving device, transmitting the digital data buffered at the second quality level.

30. The range-sensitive wireless-microphone article of manufacture of claim 29, wherein the step of transmitting the digital data buffered at the first quality level is performed absent a transmit command from a receiving device.

31. The range-sensitive wireless-microphone article of manufacture of claim 27, the processor instructions configured to cause the at least one processor to cause the personal transceiver device to operate as to perform the following:

responsive to the start command, discontinuing buffering the digital data at the first quality level.

32. The range-sensitive wireless-microphone article of manufacture of claim 27, the processor instructions configured to cause the at least one processor to cause the personal transceiver device to operate as to perform the following:

following the start command, continuing to buffer the digital data at the first quality level.