Universal transmitter
OwnerPhilip Y. W. Tsuiinventor
Life of this patent
Estimating the term…
Abstract
A method and apparatus for providing a universal transmitter that can detect and emulate a transmission signal of a transmitter, the transmission signal having a corresponding transmission frequency and a corresponding modulation pattern. The universal transmitter comprises: a detection circuit that detects a frequency and a modulation pattern of a transmitted signal of a separate transmitter and a memory. A processor coupled to the detection circuit and the memory, stores a frequency value representative of the detected frequency and a plurality of value representative of the detected modulation pattern, in the memory. A transmitting circuit coupled to the processor, is operable to transmit an output signal having the frequency and the modulation pattern of the transmission signal.
Claims10
A universal transmitter, comprising:
- a detection circuit to detect a frequency and a modulation pattern of a signal transmitted from a separate transmitter, the detection circuit including
- an antenna to receive the signal,
- a wave shaping circuit coupled to the antenna to condition the signal, and
- a wave envelope detection circuit coupled to the antenna to detect values corresponding to a plurality of timing intervals of the signal, each of said plurality of timing intervals being representative of a corresponding transmission period within a transmission cycle of the signal;
- a memory;
- a processor coupled to the detection circuit and the memory, the processor to (i) count a plurality of transitions of the signal, (ii) determine the timing intervals of the received signal, (iii) determine a frequency of the signal based on the count and the timing intervals, and (iv) store the frequency and values representative of the modulation pattern in the memory;
- and
- a transmitting circuit coupled to the processor, the transmitting circuit being operable to transmit an output signal having the frequency and the modulation pattern of the signal.
A system for detecting and emulating a signal transmitted by a remote transmitter, the signal having a frequency and a modulation pattern, the system comprising:
- a detection circuit that detects a frequency and a modulation pattern of the signal of the transmitter, the detection circuit including
- an antenna to receive the signal,
- a wave shaping circuit coupled to the antenna to condition the signal, and
- a wave envelope detection circuit coupled to the antenna to detect values corresponding to a plurality of timing intervals of the signal, each of said plurality of timing intervals being representative of a corresponding transmission period within a transmission cycle of the signal;
- a memory;
- a processor coupled to the detection circuit and the memory, the processor to (i) count a plurality of transitions of the signal, (ii) determine the timing intervals of the received signal, (iii) determine a frequency of the signal based on the count and the timing intervals, and (iv) store the frequency and values representative of the modulation pattern in the memory;
- and
- a transmitting circuit coupled to the processor, the transmitting circuit being operable to transmit an output signal having the frequency and the modulation pattern of the signal.
A method for a universal transmitter of detecting and emulating a transmission signal of a separate transmitter, the transmission signal having a transmission frequency and a modulation pattern, the method comprising:
- a receiving the transmission signal;
- (b) conditioning the transmission signal to provide a signal having enhanced transitions;
- (c) determining a number of counts between each enhanced transition;
- (d) determining a timing interval between each enhanced transition;
- (e) determining the transmission frequency and the modulation pattern of the transmission signal based on the number of counts and the timing interval between each enhanced transition;
- (f) storing the transmission frequency and the modulation pattern in memory;
- and
- (g) transmitting an output signal having the transmission frequency and the modulation pattern, in response to an enable signal,
- wherein the universal transmitter includes:
- a detection circuit to detect the transmission frequency and the modulation pattern of the transmission signal, the detection circuit including
- an antenna to receive the transmission signal,
- a wave shaping circuit coupled to the antenna to perform act (b), and
- a wave envelope detection circuit coupled to the antenna to detect values corresponding to a plurality of timing intervals of the transmission signal, each of said plurality of timing intervals being representative of a corresponding transmission period within a transmission cycle of the transmission signal;
- a memory;
- a processor coupled to the detection circuit and the memory, the processor to perform acts (c) through (f);
- and
- a transmitting circuit coupled to the processor, the transmitting circuit being operable to perform act (g).
Dependencies are inferred from the claim text.