Use of remote controls for audio-video equipment to control other devices

• US 7,042,366 B1
• Filed: 09/06/2000
• Issued: 05/09/2006
• Est. Priority Date: 09/06/2000
• Status: Expired due to Term

• Current Assignee: Universal Electronics, Inc.
• Original Assignee: ZiLOG Incorporated (Littelfuse Incorporated)
• Inventors: Marquez, Alexander, Mui, Daniel
• Primary Examiner(s): Horabik, Michael
• Assistant Examiner(s): BROWN, VERNAL U
• Application Number:
  US09/655,733
• Time in Patent Office: 2,071 Days
• Field of Search: 340/825.25, 340/825.22, 340/825.69, 340/825.72, 340/5.61, 340/5.64, 340/5.74, 340/539, 348/734, 446/549, 341/176, 359/142, 359/146, 359/148
• US Class Current: 340/4.41
• CPC Class Codes: G08C 23/04 using light waves, e.g. infrared

Abstract

Remote controls sold with various audio-video equipment, such as televisions, audio amplifiers, tape players and disc players, are used to control other types of devices, such as toys and home appliances. In order to accommodate different brands of remote controls that emit infra-red control signals according to different protocols, the controlled device that is not audio-video equipment includes a universal decoder that recognizes and decodes a variety of such signals. In a preferred embodiment, the same control function that is specified for one or more keys of a remote control is carried out in the controlled device. As examples, a sound source in the controlled device is muted when a mute button of any one of many different brands of remote controls is pushed, and/or the volume of the sound source is increased and decreased when volume-up and volume-down buttons, respectively, are pushed. When a television, or other piece of audio-video equipment, and a toy or home appliance, or other type of device that emits sounds, are both within range of the audio-video equipment remote control, the sound of both is controlled at the same time.

Claims

1. Apparatus other than audio-video equipment, comprising:

a photo-detector adapted to receive infra-red radiation and generate an output signal,

a memory simultaneously storing a plurality of records that individually contain characteristics of a different one of a plurality of infra-red signal pattern protocols emitted by a plurality of different types of remote controls of audio-video equipment, the individual records additionally including a link within the record of one or more signal patterns emitted by one of the remote controls with at least one specific function,

a signal decoder connected to receive the photo-detector output and to first identify a match between the signal pattern protocols of one of the stored records and then to identify a match between a pattern of the output signal and one of the signal patterns stored in the identified record for generating a control signal corresponding to the specific function to which the matched signal pattern is linked within the identified record, and

a component of said apparatus other than audio-video equipment connected to receive the control signal and perform the specific function.

2. Apparatus according to claim 1, wherein the apparatus component includes a sound source and the specific function controls the sound source.

3. Apparatus according to claim 2, wherein the specific audio-video function of the matched signal pattern includes muting the sound of audio-video equipment and the specific function includes muting the sound source of said apparatus other than audio-video equipment.

4. Apparatus according to claim 2, wherein the specific audio-video function of the matched signal pattern includes raising or lowering the sound level of audio-video equipment and the specific function includes raising or lowering the level of the sound source of said apparatus other than audio-video equipment.

5. Apparatus according to any one of claims 1–

4, wherein said apparatus other than audio-video equipment is installed within a toy.

6. A method of remotely controlling a device other than audio-video equipment to perform one or more functions, comprising:

simultaneously storing a plurality of records in the device other than audio-video equipment of characteristics of signals emitted by a plurality of different types of remote controls of audio-video equipment, the individual records storing one or more signal patterns that are individually linked within the record with one of the one or more functions to be performed by the device,

before comparing the signal received by the device from the remote control with the signal patterns of any of the records, comparing a signal received by the device from one of the different types of remote controls with the records stored in the device to identify one of the records corresponding to the type of remote control emitting the received signal,

thereafter comparing the signal received by the device from the remote control with the one or more signal patters within the identified record in order to identify a signal pattern within the identified record having that of the received signal, and

executing one of the one or more functions in the device that is linked in the identified record with the identified signal pattern.

7. The method of claim 6, wherein the device other than audio-video equipment is installed within a toy.

8. The method of claim 7, wherein the one or more functions of the device other than audio-video equipment includes control of a sound generator therein.