Tone-based wireless remote control
First Claim
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1. A tone-based wireless remote control comprising a phone (100) operated in associated with a tone decoder (10), wherein the tone decoder comprises:
- a sound receiver (11) receiving DTMF signals when any key of the phone is pressed;
a DTMF decoder (12) coupled to the sound receiver (11) to convert the DTMF signals to digital signals;
a microprocessor (14) coupled to the DTMF decoder (12) to encrypt the digital signals to a specific remote control code; and
an amplifying and emitting circuit (15) coupled to the microprocessor (14) to retrieve the encoded remote control code, wherein the amplifying and emitting circuit (15) provides a carrier wave over the encoded remote control code and then transmits the remote control code to an electrical product to be controlled.
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Abstract
A tone-based wireless remote control has a tone decoder operated in association with a mobile phone/telephone. When a user presses keys of the phone to generate different tones, these tones are received by the tone decoder and further converted to digital signals. A microprocessor of the tone decoder recognizes the digital signals and accordingly produces a remote control code. The remote control code is subsequently transmitted to an electrical product to accomplish a desired operation.
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Citations
13 Claims
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1. A tone-based wireless remote control comprising a phone (100) operated in associated with a tone decoder (10), wherein the tone decoder comprises:
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a sound receiver (11) receiving DTMF signals when any key of the phone is pressed;
a DTMF decoder (12) coupled to the sound receiver (11) to convert the DTMF signals to digital signals;
a microprocessor (14) coupled to the DTMF decoder (12) to encrypt the digital signals to a specific remote control code; and
an amplifying and emitting circuit (15) coupled to the microprocessor (14) to retrieve the encoded remote control code, wherein the amplifying and emitting circuit (15) provides a carrier wave over the encoded remote control code and then transmits the remote control code to an electrical product to be controlled. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification