Apparatus, system and method for flip modulation in an impulse radio communications system
First Claim
1. A method of generating an ultra wideband signal, comprising:
- generating an information signal comprising a plurality of different data states; and
generating one of a plurality of different ultra wideband waveforms in accordance with a corresponding one of said plurality of different data states of the information signal, said plurality of different ultra wideband waveforms including a first ultra wideband waveform that is an impulse waveform and said plurality of different ultra wideband waveforms including a second ultra wideband waveform that is an inverse of the first ultra wideband waveform;
wherein only one of said plurality of different ultra wideband waveforms is generated based upon any one of said plurality of different data states of the information signal.
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Accused Products
Abstract
Apparatuses, systems and methods for transmitting and receiving modulated impulse radio signals. An impulse radio receiver includes a time base, a precision timing generator, a template generator, a delay, first and second correlators, a data detector and a time base adjustor. The time base produces a periodic timing signal that is used by the precision timing generator to produce a timing trigger signal. The template generator uses the timing trigger signal to produce a template signal. A delay receives the template signal and outputs a delayed template signal. When an impulse radio signal is received, the first correlator correlates the received impulse radio signal with the template signal to produce a first correlator output signal, and the second correlator correlates the received impulse radio signal with the delayed template signal to produce a second correlator output signal. The data detector produces a data signal based on at least the first correlator output signal. The time base adjustor produces a time base adjustment signal based on at least the second correlator output signal. The time base adjustment signal is used to synchronize the time base with the received impulse radio signal.
9 Citations
20 Claims
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1. A method of generating an ultra wideband signal, comprising:
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generating an information signal comprising a plurality of different data states; and generating one of a plurality of different ultra wideband waveforms in accordance with a corresponding one of said plurality of different data states of the information signal, said plurality of different ultra wideband waveforms including a first ultra wideband waveform that is an impulse waveform and said plurality of different ultra wideband waveforms including a second ultra wideband waveform that is an inverse of the first ultra wideband waveform; wherein only one of said plurality of different ultra wideband waveforms is generated based upon any one of said plurality of different data states of the information signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A system for generating an ultra wideband signal, comprising:
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an information signal generator for generating a plurality of different data states of an information signal; and a pulse generator that receives said information signal and generates one of a plurality of different ultra wideband waveforms in accordance with a corresponding one of said plurality of different data states, said plurality of different ultra wideband waveforms including a first ultra wideband waveform that is an impulse waveform and said plurality of different ultra wideband waveforms including a second ultra wideband waveform that is an inverse of the first ultra wideband waveform, wherein only one of said plurality of different ultra wideband waveforms is generated based upon any one of said plurality of different data states of the information signal. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification