System and method for improved infrared communication between consumer appliances

• US 8,503,883 B2
• Filed: 03/31/2008
• Issued: 08/06/2013
• Est. Priority Date: 03/31/2008
• Status: Active Grant

• Current Assignee: Universal Electronics, Inc.
• Original Assignee: Universal Electronics, Inc.
• Inventors: Garner, Scott, Williams, Graham, Brown, William L.
• Primary Examiner(s): Sedighian, M. R.
• Application Number:
  US12/059,577
• Publication Number:
  US 20090245804A1
• Time in Patent Office: 1,954 Days
• Field of Search: 398106-109, 398118-128, 398/129, 398/131, 398/135, 398/136, 398/137, 398/138, 398/151, 398/156, 398/158, 398/160, 398/162, 398/112, 398/130, 398/94, 398/95, 398/97, 398/159
• US Class Current: 398/106
• CPC Class Codes: G08C 23/04 using light waves, e.g. infrared
• CPC Class Codes: H03G 1/02 Remote control of amplification, tone or bandwidth combined with remote tuning or selection of resonant circuits H03J
• CPC Class Codes: H03G 3/3084 in receivers or transmitters for electromagnetic waves other than radiowaves, e.g. lightwaves H03G3/32, H03G3/34 take precedence
• CPC Class Codes: H03G 3/32 the control being dependent upon ambient noise level or sound level
• CPC Class Codes: H04N 21/41265 having a remote control device for bidirectional communication between the remote control device and client device unidirectional remote control device H04N21/42204
• CPC Class Codes: H04N 21/42204 User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor constructive details of casings for the remote control device H01H9/0235; user interfaces for controlling a tuning device of a television receiver through a remote control H03J9/00; remote control of peripheral devices connected to a television receiver through the remote control device of the television receiver H04B1/205
• CPC Class Codes: H04N 21/42221 Transmission circuitry, e.g. infrared [IR] or radio frequency [RF]
• CPC Class Codes: H04N 21/42225 characterized by types of remote control, e.g. universal remote control

Abstract

Optical or electrical attenuation is provided at the infrared (IR) receiver of a first device, such as a remote control, together with a commensurate increase in output of the IR transmitter of an appliance, such as a set top box, to improve the signal-to-noise ratio of IR communications with respect to any background infrared radiation, such as radiation from a plasma display screen.

Claims

1. A method for facilitating infrared (IR) communications from a first device to a second device in the presence of an external IR noise source being generated by a third device, comprising:

initiating an IR transmission from the first device to the second device;

detecting at the second device a level of external IR noise being generated by the third device; and

causing the IR transmission to be dynamically attenuated at the second device as a function of the detected level of external IR noise being generated by the third device.

2. The method as recited in claim 1, comprising electrically attenuating the IR transmission at the second device.

3. The method as recited in claim 1, comprising optically attenuating the IR transmission at the second device.

4. The method as recited in claim 1, wherein the second device comprises a remote control adapted to control functions of at least the first device and an IR receiver for receiving the IR transmission from the first device and wherein the first device comprises a set top box.

5. The method as recited in claim 4, wherein the remote control comprises a lens cover for the IR receiver and the lens cover optically attenuates the IR transmission.

6. The method as recited in claim 4, comprising electrically attenuating the IR transmission once received by the IR receiver.

7. The method as recited in claim 1, comprising boosting a level of the IR transmission at the first device.

8. The method as recited in claim 7, comprising dynamically boosting a level of the IR transmission at the first device as a function of the detected level of external IR noise being generated by the third device.

9. The method as recited in claim 8, comprising causing the second device to instruct the first device to boost the level of the IR transmission as a function of the detected level of external IR noise being generated by the third device.

10. The method as recited in claim 7, wherein the level of the IR transmission at the first device is boosted in response to a signal being transmitted to the first device by the second device.

11. The method as recited in claim 10, wherein the level of the IR transmission at the first device is boosted in response to the first device detecting an absence of a signal being transmitted by the second device.

12. A method for facilitating infrared (IR) communications from a set top box device to a remote control device in the presence of an IR noise being generated by a display device, comprising:

initiating an IR transmission from the set top box device to the remote control device; and

dynamically boosting at the set top box a level of the IR transmission from the set top box device to the remote control device in response to the set top box device detecting an absence of a signal being transmitted to the set top box device by the remote control device.

13. The method as recited in claim 12, wherein the display device comprises a plasma television.

14. The method as recited in claim 12, wherein the IR transmission comprises remote control configuration data.

15. The method as recited in claim 12, wherein the level of the IR transmission is dynamically boosted at the set top box until the set top box device detects a recognizable signal being transmitted to the set top box device by the remote control device.