CONTROLLER USING DUAL-TONE MULTI-FREQUENCY (DTMF) TONES
First Claim
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1. A method, comprising:
- receiving a first signal having a first set of characteristics associated with a first data-encoding scheme;
converting the first signal into a second signal having a second set of characteristics associated with a second data-encoding scheme;
transmitting the second signal to a controller of a communications device; and
decoding the second signal to identify control instructions for the communications device, wherein the controller is adapted to decode signals having the second set of characteristics and not the first set of characteristics.
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Abstract
A method and device for converting signals from a Human-Interface Device or similar input device to a stream of digital signals that are useable as inputs to an RS-232 or dual-tone multi-frequency (DTMF) circuit is provided. More specifically, the input from the input device may be received at a universal Serial Bus (USB) host and converted to an RS-232 or DTMF signal for ultimate use in controlling a remote device such as a camera in a video security system.
14 Citations
20 Claims
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1. A method, comprising:
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receiving a first signal having a first set of characteristics associated with a first data-encoding scheme; converting the first signal into a second signal having a second set of characteristics associated with a second data-encoding scheme; transmitting the second signal to a controller of a communications device; and decoding the second signal to identify control instructions for the communications device, wherein the controller is adapted to decode signals having the second set of characteristics and not the first set of characteristics. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A device, comprising:
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an input port operable to receive input signals from an input device, wherein the input signals comprise data encoded thereon according to a first data-encoding method; a first output operable to transmit output signals to a remote communications device, wherein the output signals comprise data encoded thereon according to a second data-encoding method; and a controller operable to convert input signals comprising data encoded thereon according to a first data-encoding method to output signals comprising data encoded thereon according to a second data-encoding method, wherein the first and second data-encoding methods are different. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A method, comprising:
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receiving a first electrical signal comprising data, wherein the first electrical signal employs a non-frequency dependent data-encoding scheme to convey data; and converting the first electrical signal to a second electrical signal, wherein the second electrical signal employs a frequency dependent data-encoding scheme to convey data. - View Dependent Claims (19, 20)
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Specification