Oscillator coupled to an antenna and an application
First Claim
1. Portable radio frequency device comprising a power supply and a power control for controlling power provided to said device during a limited period so as to consume a correspondingly limited amount of power from said power supply,a synchronous oscillator (1b) powered by said power supply during said limited period, said synchronous oscillator coupled toan application (1cd;
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1c;
1d) and toan antenna (1a),said device for providing an output signal (2e;
3) for carrying out said application during said limited period in response to an input signal (2;
3e) received by said device and amplified by said synchronous oscillator during said limited period.
2 Assignments
0 Petitions
Accused Products
Abstract
A radio frequency device has an antenna for capturing an incoming signal for processing by the device or for radiating an outgoing signal from the device and a signal processor having one or more synchronous oscillators responsive to an input signal for providing an amplified output signal without using much power. An application is a radio frequency (RF) transponder (tag) for receiving an RF signal from an interrogator includes a tag antenna for receiving the RF signal from the interrogator and a receiver section connected to the tag antenna wherein the receiver consumes a significantly lower amount of power than conventional receiver technologies by using one or more synchronous oscillators.
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Citations
45 Claims
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1. Portable radio frequency device comprising a power supply and a power control for controlling power provided to said device during a limited period so as to consume a correspondingly limited amount of power from said power supply,
a synchronous oscillator (1b) powered by said power supply during said limited period, said synchronous oscillator coupled to an application (1cd; -
1c;
1d) and toan antenna (1a), said device for providing an output signal (2e;
3) for carrying out said application during said limited period in response to an input signal (2;
3e) received by said device and amplified by said synchronous oscillator during said limited period. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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1c;
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38. A transponder comprising:
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a first antenna (28a) responsive to an incoming radio frequency signal (14) for providing a captured radio frequency signal (28ac); a first application part (28c) responsive to said captured signal, for providing a first coupled signal (28cb); a synchronous oscillator, responsive to said first coupled signal, for providing a conditioned output signal (28bd); a second application part (28d) responsive to said conditioned output signal, for providing a second coupled signal (28da); and a second antenna (30a), responsive to said second coupled signal (28da), for providing an outgoing radio frequency signal (12). - View Dependent Claims (39, 40)
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41. A device, comprising:
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a quadrature hybrid for providing a pair of quadrature signals in response to an input signal; a pair of synchronous oscillators each responsive to a respective one of the quadrature signals for providing synchronous oscillator output signals; and a summer, responsive to the output signals from the synchronous oscillators, for providing a summed output signal. - View Dependent Claims (42, 43, 44, 45)
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Specification