US6704549B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-mode, multi-band communication system
Assignee: ParkerVision Inc
•
Filing: 2000-01-03
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Granted: 2004-03-09
•
Expires: 2020-01-03
Abstract
Abstract The present invention is directed toward the transmission subsystem of a multi-mode, multi-band communication system that can transmit and/or receive one or more information signals on one or more transmission frequencies using one or more modulation schemes. According to embodiments of the invention, the up-conversion section is implemented using a universal frequency translator (UFT).
Inventors
- 👤 David F. Sorrells
- 👤 Michael J. Bultman
- 👤 Charles D. Clements
- 👤 Robert W. Cook
- 👤 Joseph M. Hamilla
- 👤 Richard C. Looke
- 👤 Charley D. Moses, Jr.
- 👤 Gregory S. Silver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:52
CPC Classifications
H; H03; H03D; H03D7/00
Claims Analysis
Total Claims: 108
Claim 1
Independent Claim
238 words
A method of communicating, comprising the steps of: (1) selecting an information signal from one or more information signals as a selected information signal; (2) determining a desired frequency for an oscillating signal; (3) modulating said oscillating with said selected information signal according to a desired modulation scheme to create a modulated oscillating signal; (4) gating a bias signal at a rate that is a function of said modulated oscillating signal to create an angle modulated harmonically rich signal; (5) enabling a filter circuit to process said angle modulated harmonically rich signal; and (6) filtering, in said filter circuit, said angle modulated harmonically rich signal to isolate one or more desired harmonics, each of said one or more desired harmonics being a desired output signal having a desired output frequency, wherein said gating step is performed by a frequency translation module having a square wave generator that accepts said modulated oscillating signal and generates a square wave, a pulse shaper that accepts said square wave and generates a string of pulses, and a switch being controlled by said string of pulses and being connected to said bias signal and generating said harmonically rich signal, said switch having a first port, a second port, and a control port, wherein said string of pulses is connected to said control port, said bias signal is connected to said first port, and said harmonically rich signal is connected to said second port.
Claim 2
Independent Claim
238 words
A method of communicating, comprising the steps of: (1) selecting an information signal from one or more information signals as a selected information signal; (2) determining a desired frequency for an oscillating signal; (3) modulating said oscillating with said selected information signal according to a desired modulation scheme to create a modulated oscillating signal; (4) gating a bias signal at a rate that is a function of said modulated oscillating signal to create an angle modulated harmonically rich signal; (5) enabling a filter circuit to process said angle modulated harmonically rich signal; and (6) filtering, in said filter circuit, said angle modulated harmonically rich signal to isolate one or more desired harmonics, each of said one or more desired harmonics being a desired output signal having a desired output frequency, wherein said gating step is performed by a frequency translation module having a square wave generator that accepts said modulated oscillating signal and generates a square wave, a pulse shaper that accepts said square wave and generates a string of pulses, and a switch being controlled by said string of pulses and being connected to said bias signal and generating said harmonically rich signal, said switch having a first port, a second port, and a control port, wherein said string of pulses is connected to said control port, said bias signal is connected to said first port, and said harmonically rich signal is connected to said second port.
Claim 3
Dependent Claim
24 words
The method of claim 1 , further comprising the step of: (7) repeating steps (2)-(6) for another of said one or more information signals.
Claim 4
Dependent Claim
56 words
The method of claim 1 , wherein step (1) comprises: (a) accepting said one or more information signals, wherein said one or more information signals are unconditioned information signals, (b) conditioning each of said unconditioned information signals to generate conditioned information signals, and (c) selecting one of said conditioned information signals as a selected information signal.
Claim 5
Dependent Claim
19 words
The method claim 3 , wherein step (1)(b) comprises: formatting said unconditioned information signals to create conditioned information signals.
Claim 6
Dependent Claim
36 words
The method of claim 3 , wherein step (1)(b) comprises: (i) formatting said unconditioned information signals to create a properly formatted information signals, and (ii) buffering said properly formatted information signals to create conditioned information signals.
Claim 7
Dependent Claim
12 words
The method of claim 5 , wherein said buffering is a pass-through.
Claim 8
Dependent Claim
20 words
The method of claim 3 , wherein step (1)(b) comprises: buffering said unconditioned information signals to create conditioned information signals.
Claim 9
Dependent Claim
32 words
The method of claim 1 , wherein step (3) comprises: frequency modulating said oscillating signal with said selected information signal according to a desired modulation scheme to create a modulated oscillating signal.
Claim 10
Dependent Claim
32 words
The method of claim 1 , wherein step (3) comprises: phase modulating said oscillating signal with said selected information signal according to a desired modulation scheme to create a modulated oscillating signal.
Claim 11
Dependent Claim
22 words
The method of claim 1 , wherein said desired frequency for said oscillating signal is a subharmonic of said desired output frequency.
Claim 12
Dependent Claim
23 words
The method of claim 1 , further comprising the step of: (7) conditioning said desired output signal to generate a conditioned output signal.
Claim 13
Dependent Claim
50 words
The method of claim 11 , wherein step (7) comprises: (a) routing said desired output signal through a driver to generate a driven output signal, and (b) routing said driven output signal through-a power amplifier to generate an amplified output signal, said amplified output signal being said conditioned output signal.
Claim 14
Dependent Claim
17 words
The method of claim 11 , further comprising the step of: (8) transmitting said conditioned output signal.
Claim 15
Dependent Claim
18 words
The method of claim 13 , wherein step (8) comprises: transmitting said conditioned output signal from an antenna.
Claim 16
Dependent Claim
32 words
The method of claim 11 , further comprising the step of: (8) selecting another of said one or more information signals as said selected information signal, and repeating steps (2) through (7).
Claim 17
Dependent Claim
49 words
The method of claim 1 , wherein step (4) comprises: (a) shaping said modulated oscillating signal to create a shaped modulated oscillating signal, and (b) gating a bias signal at a rate that is a function of said shaped modulated oscillating signal to create a modulated harmonically rich signal.
Claim 18
Independent Claim
239 words
A method of communicating, comprising the steps of: (1) selecting an information signal from one or more information signals as a selected information signal; (2) determining a desired frequency for an oscillating signal; (3) combining said selected information signal with a bias signal to create a bias/reference signal; (4) gating said bias/reference signal at a rate that is a function of said oscillating signal to create an amplitude modulated harmonically rich signal; (5) enabling a filter circuit to process said amplitude modulated harmonically rich signal; and (6) filtering, in said filter circuit, said amplitude modulated harmonically rich signal to isolate one or more desired harmonics, each of said one or more desired harmonics being a desired output signal having a desired output frequency, wherein said gating step is performed by a frequency translation module having a square wave generator that accepts said modulated oscillating signal and generates a square wave, a pulse shaper that accepts said square wave and generates a string of pulses, and a switch being controlled by said string of pulses and being connected to said bias signal and generating said harmonically rich signal, said switch having a first port, a second port, and a control port, wherein said string of pulses is connected to said control port, said bias signal is connected to said first port, said harmonically rich signal is connected to said first port, and a ground is connected to said second port.
Claim 19
Independent Claim
239 words
A method of communicating, comprising the steps of: (1) selecting an information signal from one or more information signals as a selected information signal; (2) determining a desired frequency for an oscillating signal; (3) combining said selected information signal with a bias signal to create a bias/reference signal; (4) gating said bias/reference signal at a rate that is a function of said oscillating signal to create an amplitude modulated harmonically rich signal; (5) enabling a filter circuit to process said amplitude modulated harmonically rich signal; and (6) filtering, in said filter circuit, said amplitude modulated harmonically rich signal to isolate one or more desired harmonics, each of said one or more desired harmonics being a desired output signal having a desired output frequency, wherein said gating step is performed by a frequency translation module having a square wave generator that accepts said modulated oscillating signal and generates a square wave, a pulse shaper that accepts said square wave and generates a string of pulses, and a switch being controlled by said string of pulses and being connected to said bias signal and generating said harmonically rich signal, said switch having a first port, a second port, and a control port, wherein said string of pulses is connected to said control port, said bias signal is connected to said first port, said harmonically rich signal is connected to said first port, and a ground is connected to said second port.
Claim 20
Dependent Claim
27 words
The method of claim 17 , further comprising the step of: (7) selecting another of said one or more information signals, and repeating steps (2) through (6).
Claim 21
Dependent Claim
55 words
The method of claim 17 , wherein step (1) comprises: (a) accepting one or more information signals, wherein said one or more information signals are unconditioned information signals, (b) conditioning each of said unconditioned information signals to generate conditioned information signals, and (c) selecting one of said conditioned information signals as a selected information signal.
Claim 22
Dependent Claim
20 words
The method of claim 19 , wherein step (1)(b) comprises: formatting said unconditioned information signals to create conditioned information signals.
Claim 23
Dependent Claim
35 words
The method of claim 19 , wherein step (1)(b) comprises: (i) formatting said unconditioned information signals to create properly formatted information signals, and (ii) buffering said properly formatted information signals to create conditioned information signals.
Claim 24
Dependent Claim
12 words
The method of claim 21 , wherein said buffering is a pass-through.
Claim 25
Dependent Claim
20 words
The method of claim 19 , wherein step (1)(b) comprises: buffering said unconditioned information signals to create conditioned information signals.
Claim 26
Dependent Claim
21 words
The method of claim 17 , wherein said desired frequency for said oscillating signal is a-subharmonic of said desired output frequency.
Claim 27
Dependent Claim
23 words
The method of claim 17 , further comprising the step of: (7) conditioning said desired output signal to generate a conditioned output signal.
Claim 28
Dependent Claim
51 words
The method of claim 25 , wherein step (7) comprises: (a) routing said desired output signal through a driver to generate a driven output signal, and (b) routing said driven output signal through a power amplifier to generate an amplified output signal, said amplified output signal being said conditioned output signal.
Claim 29
Dependent Claim
17 words
The method of claim 25 , further comprising the step of: (8) transmitting said conditioned output signal.
Claim 30
Dependent Claim
18 words
The method of claim 27 , wherein step (8) comprises: transmitting said amplified output signal from an antenna.
Claim 31
Dependent Claim
32 words
The method of claim 25 , further comprising the step of: (8) selecting another of said one or more information signals as said selected information signal, and repeating steps (2) through (7).
Claim 32
Dependent Claim
47 words
The method of claim 17 , wherein step (4) comprises: (a) shaping said oscillating signal to create a shaped oscillating signal, and (b) gating a bias/reference signal at a rate that is a function of said shaped oscillating signal to create an amplitude modulated harmonically rich signal.
Claim 33
Independent Claim
208 words
A system for communicating, comprising: an information signal conditioning module to accept one or more information signals and to output one or more conditioned information signals, a signal selection module to accept said one or more conditioned information signals and to output a selected information signal, a modulation and frequency selection module to accept said selected information signal and to output an oscillating signal, a frequency translation module to accept said oscillating signal and a bias/reference signal, and to output a harmonically rich signal, and a frequency band selection module to accept said harmonically rich signal and to output one or more desired output signals, wherein said frequency translation module comprises a square wave generator that accepts said oscillating signal and generates a square wave, a pulse shaper that accepts said square wave and generates a string of pulses, and a switch being controlled by said string of pulses and being connected to said bias/reference signal and generating said harmonically rich signal, and wherein said switch has a first port, a second port, and a control port, wherein said string of pulses is connected to said control port, said bias/reference signal is connected to said first port, and said harmonically rich signal is connected to said second port.
Claim 34
Independent Claim
208 words
A system for communicating, comprising: an information signal conditioning module to accept one or more information signals and to output one or more conditioned information signals, a signal selection module to accept said one or more conditioned information signals and to output a selected information signal, a modulation and frequency selection module to accept said selected information signal and to output an oscillating signal, a frequency translation module to accept said oscillating signal and a bias/reference signal, and to output a harmonically rich signal, and a frequency band selection module to accept said harmonically rich signal and to output one or more desired output signals, wherein said frequency translation module comprises a square wave generator that accepts said oscillating signal and generates a square wave, a pulse shaper that accepts said square wave and generates a string of pulses, and a switch being controlled by said string of pulses and being connected to said bias/reference signal and generating said harmonically rich signal, and wherein said switch has a first port, a second port, and a control port, wherein said string of pulses is connected to said control port, said bias/reference signal is connected to said first port, and said harmonically rich signal is connected to said second port.
Claim 35
Dependent Claim
63 words
The system of claim 31 , wherein said information signal conditioning module comprises one or more format modules and one or more buffer memories, said one or more format modules to accept said one or more information signals and to output formatted information signals, and said one or more buffer memories to accept said formatted information signals and to output conditioned information signals.
Claim 36
Dependent Claim
28 words
The system of claim 32 , wherein the quantity of said one or more format modules is equal to the quantity of said one or more information signals.
Claim 37
Dependent Claim
26 words
The system of claim 32 , wherein the quantity of said one or more buffer memories is equal to the quantity of said formatted information signals.
Claim 38
Dependent Claim
28 words
The system of claim 32 , wherein the quantity of said one or more buffer memories is equal to the quantity of said one or more format modules.
Claim 39
Dependent Claim
38 words
The system of claim 31 , wherein said information signal conditioning module comprises one or more format modules, said one or more format modules to accept said one or more information signals and to output conditioned information signals.
Claim 40
Dependent Claim
28 words
The system of claim 36 , wherein the quantity of said one or more format modules is equal to the quantity of said one or more information signals.
Claim 41
Dependent Claim
40 words
The system of claim 31 , wherein said information signal conditioning module comprises one or more buffer memories, said one or more buffer memories to accept one of said one or more information signals and to output conditioned information signals.
Claim 42
Dependent Claim
28 words
The system of claim 38 , wherein the quantity of said one or more buffer memories is equal to the quantity of said one or more information signals.
Claim 43
Dependent Claim
60 words
The system of claim 31 , wherein said modulation and frequency selection module comprises a modulation selector and an oscillating signal generator, said modulation selector to accept said selected information signal and to direct said selected information signal according to a modulation control signal, and said oscillating signal generator to output said oscillating signal according to a frequency control signal.
Claim 44
Dependent Claim
88 words
The system of claim 40 , wherein said modulation selector accepts said selected information signal and directs said selected information signal to one of an amplitude modulation path, a phase modulation path, and a frequency modulation path, said amplitude modulation path being between said modulation selector and a bias/reference signal module, said bias/reference signal module to output said bias/reference signal, said phase modulation path and said frequency modulation path being between said modulation selector and said oscillating signal generator, said oscillating signal generator to output said oscillating signal.
Claim 45
Dependent Claim
37 words
The system of claim 41 , wherein said modulation selector comprises a switch, said switch having an input contact, said input contact to accept said selected information signal, said switch further having at least one output contact.
Claim 46
Dependent Claim
41 words
The system of claim 42 , wherein said switch comprises a first output contact connected to said amplitude modulation path, a second output contact connected to said phase modulation path, and a third output contact connected to said frequency modulation path.
Claim 47
Dependent Claim
48 words
The system of claim 40 , wherein said oscillating signal generator comprises an oscillator, said oscillator to create said oscillating signal, and wherein said oscillating signal has an oscillating signal frequency that is a subharmonic of the frequency of one of said one or more desired output signals.
Claim 48
Dependent Claim
68 words
The system of claim 40 , wherein said oscillating signal generator comprises a phase modulator, said phase modulator to create said oscillating signal, said oscillating signal being a phase modulated oscillating signal that is a function of said selected information signal, said phase modulated oscillating signal having an oscillating signal frequency that is a subharmonic of the frequency of one of said one or more desired output signals.
Claim 49
Dependent Claim
68 words
The system of claim 40 , wherein said oscillating signal generator comprises a frequency modulator, said frequency modulator to create said oscillating signal, said oscillating signal being a frequency modulated oscillating signal that is a function of said selected information signal, said frequency modulated oscillating signal having an oscillating signal frequency that is a subharmonic of the frequency of one of said one or more desired output signals.
Claim 50
Dependent Claim
25 words
The system of claim 40 , wherein said oscillating signal generator comprises one or more of an oscillator, a phase modulator, and a frequency modulator.
Claim 51
Dependent Claim
17 words
The system of claim 31 , further comprising a bias/reference signal module to generate said bias/reference signal.
Claim 52
Dependent Claim
32 words
The system of claim 48 , wherein said bias/reference signal module comprises a summer to accept said selected information signal and combine it with a bias signal to create said bias/reference signal.
Claim 53
Dependent Claim
18 words
The system of claim 48 , wherein said bias/reference signal is a non-zero voltage that is substantially constant.
Claim 54
Dependent Claim
46 words
The system of claim 48 , wherein said bias/reference signal module comprises a bias signal and an impedance, said impedance having a first port and a second port, said bias signal being connected to said first port, and wherein said second port outputs said bias/reference signal.
Claim 55
Dependent Claim
61 words
The system of claim 48 , wherein said bias/reference signal module comprises a summer to accept said selected information signal and combine it with a bias signal to create a summed signal, and an impedance having a first port and a second port, said summed signal being connected to said first port, and wherein said second port outputs said bias/reference signal.
Claim 56
Dependent Claim
13 words
The system of claim 31 , wherein said switch is a semiconductor device.
Claim 57
Dependent Claim
13 words
The system of claim 53 , wherein said semiconductor device is a transistor.
Claim 58
Dependent Claim
13 words
The system of claim 54 , wherein-said transistor is a field effect transistor.
Claim 59
Dependent Claim
19 words
The system of claim 55 , wherein said field effect transistor is a complementary metal oxide semiconductor-field effect transistor.
Claim 60
Dependent Claim
18 words
The system of claim 55 , wherein said field effect transistor is a gallium arsenide field effect transistor.
Claim 61
Dependent Claim
54 words
The system of claim 31 , wherein said frequency band selection module comprises a frequency band selector to accept said harmonically rich signal, said frequency band selector having one or more outputs connected to one or more filter circuits, said one or more filter circuits to output said one or more desired output signals.
Claim 62
Dependent Claim
35 words
The system of claim 58 , wherein said frequency band selector routes said harmonically rich signal to one of said one or more filter circuits based on the frequency band of said desired output signal.
Claim 63
Dependent Claim
23 words
The system of claim 58 , wherein each of said one or more filter circuits is tuned to filter a preselected frequency range.
Claim 64
Dependent Claim
22 words
The system of claim 58 , wherein said frequency band selector has one or more outputs connected to a single filter circuit.
Claim 65
Dependent Claim
27 words
The system of claim 31 , further comprising an output conditioning module to accept said one or more desired output signals and to output an output signal.
Claim 66
Dependent Claim
96 words
The system of claim 62 , wherein said output conditioning module comprises one or more drivers to accept said one or more desired output signals, each of said one or more drivers having a driver output, there being one or more driver outputs, each of said one or more driver outputs, being connected to a power amplifier, there being one or more power amplifiers, each of said one or more power amplifiers having an amplifier output, there being one or more amplifier outputs, wherein one of said one or more amplifier outputs is said output signal.
Claim 67
Dependent Claim
27 words
The system of claim 31 , further comprising a control module, said control module providing one or more communications control signals to said information signal conditioning module.
Claim 68
Dependent Claim
26 words
The system of claim 31 , further comprising a control module, said control module providing one or more communications control signals to said signal selection module.
Claim 69
Dependent Claim
28 words
The system of claim 31 , further comprising a control module, said control module providing one or more communications control signals to said modulation and frequency selection module.
Claim 70
Dependent Claim
27 words
The system of claim 31 , further comprising a control module, said control module providing one or more communications control signals to said frequency band selection module.
Claim 71
Independent Claim
216 words
A system for communicating, comprising: an information signal conditioning module to accept one or more information signals and to output one or more conditioned information signals, a signal selection module to accept said one or more conditioned information signals and to output a selected information signal, a modulation and frequency selection module to accept said selected information signal and to output an oscillating signal, a frequency translation module to accept said oscillating signal and a bias/reference signal, and to output a harmonically rich signal, and a frequency band selection module to accept said harmonically rich signal and to output one or more desired output signals, wherein said frequency translation module comprises a square wave generator that accepts said oscillating signal and generates a square wave, a pulse shaper that accepts said square wave and generates a string of pulses, and a switch being controlled by said string of pulses and being connected to said bias/reference signal and generating said harmonically rich signal, and wherein said switch has a first port, a second port, and a control port, wherein said string of pulses is connected to said control port, said bias/reference signal is connected to said first port, said harmonically rich signal is connected to said first port, and a ground is connected to said second port.
Claim 72
Independent Claim
216 words
A system for communicating, comprising: an information signal conditioning module to accept one or more information signals and to output one or more conditioned information signals, a signal selection module to accept said one or more conditioned information signals and to output a selected information signal, a modulation and frequency selection module to accept said selected information signal and to output an oscillating signal, a frequency translation module to accept said oscillating signal and a bias/reference signal, and to output a harmonically rich signal, and a frequency band selection module to accept said harmonically rich signal and to output one or more desired output signals, wherein said frequency translation module comprises a square wave generator that accepts said oscillating signal and generates a square wave, a pulse shaper that accepts said square wave and generates a string of pulses, and a switch being controlled by said string of pulses and being connected to said bias/reference signal and generating said harmonically rich signal, and wherein said switch has a first port, a second port, and a control port, wherein said string of pulses is connected to said control port, said bias/reference signal is connected to said first port, said harmonically rich signal is connected to said first port, and a ground is connected to said second port.
Claim 73
Dependent Claim
63 words
The system of claim 68 , wherein said information signal conditioning module comprises one or more format modules and one or more buffer memories, said one or more format modules to accept said one or more information signals and to output formatted information signals, and said one or more buffer memories to accept said formatted information signals and to output conditioned information signals.
Claim 74
Dependent Claim
28 words
The system of claim 69 , wherein the quantity of said one or more format modules is equal to the quantity of said one or more information signals.
Claim 75
Dependent Claim
26 words
The system of claim 69 , wherein the quantity of said one or more buffer memories is equal to the quantity of said formatted information signals.
Claim 76
Dependent Claim
28 words
The system of claim 69 , wherein the quantity of said one or more buffer memories is equal to the quantity of said one or more format modules.
Claim 77
Dependent Claim
38 words
The system of claim 68 , wherein said information signal conditioning module comprises one or more format modules, said one or more format modules to accept said one or more information signals and to output conditioned information signals.
Claim 78
Dependent Claim
28 words
The system of claim 73 , wherein the quantity of said one or more format modules is equal to the quantity of said one or more information signals.
Claim 79
Dependent Claim
40 words
The system of claim 68 , wherein said information signal conditioning module comprises one or more buffer memories, said one or more buffer memories to accept one of said one or more information signals and to output conditioned information signals.
Claim 80
Dependent Claim
28 words
The system of claim 75 , wherein the quantity of said one or more buffer memories is equal to the quantity of said one or more information signals.
Claim 81
Dependent Claim
60 words
The system of claim 68 , wherein said modulation and frequency selection module comprises a modulation selector and an oscillating signal generator, said modulation selector to accept said selected information signal and to direct said selected information signal according to a modulation control signal, and said oscillating signal generator to output said oscillating signal according to a frequency control signal.
Claim 82
Dependent Claim
88 words
The system of claim 77 , wherein said modulation selector accepts said selected information signal and directs said selected information signal to one of an amplitude modulation path, a phase modulation path, and a frequency modulation path, said amplitude modulation path being between said modulation selector and a bias/reference signal module, said bias/reference signal module to output said bias/reference signal, said phase modulation path and said frequency modulation path being between said modulation selector and said oscillating signal generator, said oscillating signal generator to output said oscillating signal.
Claim 83
Dependent Claim
37 words
The system of claim 11 , wherein said modulation selector comprises a switch, said switch having an input contact, said input contact to accept said selected information signal, said switch further having at least one output contact.
Claim 84
Dependent Claim
41 words
The system of claim 79 , wherein said switch comprises a first output contact connected to said amplitude modulation path, a second output contact connected to said phase modulation path, and a third output contact connected to said frequency modulation path.
Claim 85
Dependent Claim
48 words
The system of claim 77 , wherein said oscillating signal generator comprises an oscillator, said oscillator to create said oscillating signal, and wherein said oscillating signal has an oscillating signal frequency that is a subharmonic of the frequency of one of said one or more desired output signals.
Claim 86
Dependent Claim
68 words
The system of claim 77 , wherein said oscillating signal generator comprises a phase modulator, said phase modulator to create said oscillating signal, said oscillating signal being a phase modulated oscillating signal that is a function of said selected information signal, said phase modulated oscillating signal having an oscillating signal frequency that is a subharmonic of the frequency of one of said one or more desired output signals.
Claim 87
Dependent Claim
68 words
The system of claim 77 , wherein said oscillating signal generator comprises a frequency modulator, said frequency modulator to create said oscillating signal, said oscillating signal being a frequency modulated oscillating signal that is a function of said selected information signal, said frequency modulated oscillating signal having an oscillating signal frequency that is a subharmonic of the frequency of one of said one or more desired output signals.
Claim 88
Dependent Claim
25 words
The system of claim 77 , wherein said oscillating signal generator comprises one or more of an oscillator, a phase modulator, and a frequency modulator.
Claim 89
Dependent Claim
17 words
The system of claim 68 , further comprising a bias/reference signal module to generate said bias/reference signal.
Claim 90
Dependent Claim
32 words
The system of claim 85 , wherein said bias/reference signal module comprises a summer to accept said selected information signal and combine it with a bias signal to create said bias/reference signal.
Claim 91
Dependent Claim
18 words
The system of claim 85 , wherein said bias/reference signal is a non-zero voltage that is substantially constant.
Claim 92
Dependent Claim
46 words
The system of claim 85 , wherein said bias/reference signal module comprises a bias signal and an impedance, said impedance having a first port and a second port, said bias signal being connected to said first port, and wherein said second port outputs said bias/reference signal.
Claim 93
Dependent Claim
61 words
The system of claim 85 , wherein said bias/reference signal module comprises a summer to accept said selected information signal and combine it with a bias signal to create a summed signal, and an impedance having a first port and a second port, said summed signal being connected to said first port, and wherein said second port outputs said bias/reference signal.
Claim 94
Dependent Claim
13 words
The system of claim 68 , wherein said switch is a semiconductor device.
Claim 95
Dependent Claim
13 words
The system of claim 90 , wherein said semiconductor device is a transistor.
Claim 96
Dependent Claim
14 words
The system of claim 91 , wherein said transistor is a field effect transistor.
Claim 97
Dependent Claim
20 words
The system of claim 92 , wherein said field effect transistor is a complementary metal oxide semiconductor field effect transistor.
Claim 98
Dependent Claim
18 words
The system of claim 92 , wherein said field effect transistor is a gallium arsenide field effect transistor.
Claim 99
Dependent Claim
54 words
The system of claim 68 , wherein said frequency band selection module comprises a frequency band selector to accept said harmonically rich signal, said frequency band selector having one or more outputs connected to one or more filter circuits, said one or more filter circuits to output said one or more desired output signals.
Claim 100
Dependent Claim
35 words
The system of claim 95 , wherein said frequency band selector routes said harmonically rich signal to one of said one or more filter circuits based on the frequency band of said desired output signal.
Claim 101
Dependent Claim
23 words
The system of claim 95 , wherein each of said one or more filter circuits is tuned to filter a preselected frequency range.
Claim 102
Dependent Claim
22 words
The system of claim 95 , wherein said frequency band selector has one or more outputs connected to a single filter circuit.
Claim 103
Dependent Claim
27 words
The system of claim 68 , further comprising an output conditioning module to accept said one or more desired output signals and to output an output signal.
Claim 104
Dependent Claim
96 words
The system of claim 99 , wherein said output conditioning module comprises one or more drivers to accept said one or more desired output signals, each of said one or more drivers having a driver output, there being one or more driver outputs, each of said one or more driver outputs being connected to a power amplifier, there being one or more power amplifiers, each of said one or more power amplifiers having an amplifier output, there being one or more amplifier outputs, wherein one of said one or more amplifier outputs is said output signal.
Claim 105
Dependent Claim
27 words
The system of claim 68 , further comprising a control module, said control module providing one or more communications control signals to said information signal conditioning module.
Claim 106
Dependent Claim
26 words
The system of claim 68 , further comprising a control module, said control module providing one or more communications control signals to said signal selection module.
Claim 107
Dependent Claim
28 words
The system of claim 68 , further comprising a control module, said control module providing one or more communications control signals to said modulation and frequency selection module.
Claim 108
Dependent Claim
27 words
The system of claim 68 , further comprising a control module, said control module providing one or more communications control signals to said frequency band selection module.
References Cited (Backward Citations)
US2057613A
Cited
US2241078A
Cited
US2283575A
Cited
US2270385A
Cited
US2358152A
Cited
US2462069A
Cited
US2410350A
Cited
US2472798A
Cited
US2462181A
Cited
US2451430A
Cited
US2499279A
Cited
US2497859A
Cited
US2802208A
Cited
US2985875A
Cited
US3069679A
Cited
US3118117A
Cited
US3246084A
Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2007-03-09 | 2007-09-08 | 2008-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2011-03-09 | 2011-09-08 | 2012-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2015-03-09 | 2015-09-08 | 2016-03-09 | $7700.00 | Window Closed / Lapsed |