Patent US5208804A successfully refreshed from Google Patents.
US5208804A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible-bandwidth radio
Assignee: Motorola Solutions Inc
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Filing: 1990-10-30
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Granted: 1993-05-04
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Expires: 2010-10-30
Abstract
Abstract A flexible-bandwith radio is provided. Briefly, the radio is equipped with a multiplicity of modulator and demodulator units arranged to communicate on a multiplicity of discrete frequency bands. There is no need for the individual frequency bands to be contiguous. As a result, the radio is able to simultaneously supporting a multiplicity of band-limited radio channels. The radio is further equipped with a channel combiner unit and a channel divider unit to combine the individual channels to form a high-capacity aggregate channel. The aggregate channel is then provided to the user, or to a user application. In a first embodiment, the radio utilizes a multiplicity of discrete modulator, demodulator, combiner, and divider units. In a second embodiment, the radio utilizes a suitably-programmed digital signal processor to perform the equivalent modulator, demodulator, combiner, and divider functions.
Inventors
- 👤 Timothy J. Wilson
- 👤 Stuart W. Thro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:11
CPC Classifications
H; H04; H04B; H04B7/00; H04B7/24; H04B7/26; H04B7/2621
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
170 words
In a radio arranged to transmit in a radio frequency band, the radio frequency band including a set of n predetermined radio frequency channels, each of the n predetermined radio frequency channels being capable of supporting a predetermined data rate, a method for the radio to transmit an aggregate signal via the n predetermined radio frequency channels, the aggregate signal having an aggregate data rate which exceeds the predetermined data rate of any individual radio frequency channel of the set of n predetermined radio frequency channels, the method comprising the steps of: (a) forming a multiplicity of n signals, each of the multiplicity of n signals being based on said aggregate signal; (b) modulating each of the n signals to form n modulated signals; and, (c) transmitting said n modulated signals via said n predetermined radio frequency channels, each of said n modulated signals being transmitted on exactly one radio frequency channel, wherein said forming step (a) and said modulating step (b) are performed substantially by a digital signal processor.
Claim 2
Dependent Claim
170 words
In a radio arranged to transmit in a radio frequency band, the radio frequency band including a set of n predetermined radio frequency channels, each of the n predetermined radio frequency channels being capable of supporting a predetermined data rate, a method for the radio to transmit an aggregate signal via the n predetermined radio frequency channels, the aggregate signal having an aggregate data rate which exceeds the predetermined data rate of any individual radio frequency channel of the set of n predetermined radio frequency channels, the method comprising the steps of: (a) forming a multiplicity of n signals, each of the multiplicity of n signals being based on said aggregate signal; (b) modulating each of the n signals to form n modulated signals; and, (c) transmitting said n modulated signals via said n predetermined radio frequency channels, each of said n modulated signals being transmitted on exactly one radio frequency channel, wherein said forming step (a) and said modulating step (b) are performed substantially by a digital signal processor.
Claim 3
Dependent Claim
19 words
The method of claim 1, at least some of said n predetermined radio frequency channels being non-contiguous and non-adjacent.
Claim 4
Dependent Claim
22 words
The method of claim 2, each of the multiplicity of n signals having a data rate of 1/n the aggregate data rate.
Claim 5
Dependent Claim
171 words
In a radio arranged to receive in a radio frequency band, the radio frequency band including a set of n predetermined radio frequency channels, each of the n predetermined radio frequency channels being capable of supporting a predetermined data rate, a method for the radio to receive a set of n modulated signals via the n predetermined radio frequency channels and to form an aggregate signal, the aggregate signal having an aggregate data rate which exceeds the predetermined data rate of any individual radio frequency channel of the set of n predetermined radio frequency channels, the method comprising the steps of: (a) receiving said n modulated signals via said n predetermined radio frequency channels, each of the n modulated signals being received on exactly one radio frequency channel; (b) demodulating each of the n modulated signals to form n demodulated signals; and, (c) forming an aggregate signal based on said n demodulated signals, wherein said demodulating step (b) and said forming step (c) are performed substantially by a digital signal processor.
Claim 6
Dependent Claim
171 words
In a radio arranged to receive in a radio frequency band, the radio frequency band including a set of n predetermined radio frequency channels, each of the n predetermined radio frequency channels being capable of supporting a predetermined data rate, a method for the radio to receive a set of n modulated signals via the n predetermined radio frequency channels and to form an aggregate signal, the aggregate signal having an aggregate data rate which exceeds the predetermined data rate of any individual radio frequency channel of the set of n predetermined radio frequency channels, the method comprising the steps of: (a) receiving said n modulated signals via said n predetermined radio frequency channels, each of the n modulated signals being received on exactly one radio frequency channel; (b) demodulating each of the n modulated signals to form n demodulated signals; and, (c) forming an aggregate signal based on said n demodulated signals, wherein said demodulating step (b) and said forming step (c) are performed substantially by a digital signal processor.
Claim 7
Dependent Claim
19 words
The method of claim 4, at least some of said n predetermined radio frequency channels being non-contiguous and non-adjacent.
Claim 8
Dependent Claim
21 words
The method of claim 5, each of the n demodulated signals having a data rate of 1/n the aggregate data rate.
Claim 9
Dependent Claim
165 words
A radio arranged to transmit in a radio frequency band, the radio frequency band including a set of n predetermined radio frequency channels, each of the n predetermined radio frequency channels being capable of supporting a predetermined data rate, the radio arranged for transmitting an aggregate signal via the n predetermined radio frequency channels, the aggregate signal having an aggregate data rate which exceeds the predetermined data rate of any individual radio frequency channel of the set of n predetermined radio frequency channels, the radio comprising: forming means for forming a multiplicity of n signals, each of the multiplicity of n signals being based on said aggregate signal; modulating means for modulating each of the n signals to form n modulated signals; and, transmitting means for transmitting said n modulated signals via said predetermined radio frequency channels, each of said n modulated signals being transmitted on exactly one channel wherein said forming means and said modulating means are substantially comprised by a digital signal processor.
Claim 10
Dependent Claim
165 words
A radio arranged to transmit in a radio frequency band, the radio frequency band including a set of n predetermined radio frequency channels, each of the n predetermined radio frequency channels being capable of supporting a predetermined data rate, the radio arranged for transmitting an aggregate signal via the n predetermined radio frequency channels, the aggregate signal having an aggregate data rate which exceeds the predetermined data rate of any individual radio frequency channel of the set of n predetermined radio frequency channels, the radio comprising: forming means for forming a multiplicity of n signals, each of the multiplicity of n signals being based on said aggregate signal; modulating means for modulating each of the n signals to form n modulated signals; and, transmitting means for transmitting said n modulated signals via said predetermined radio frequency channels, each of said n modulated signals being transmitted on exactly one channel wherein said forming means and said modulating means are substantially comprised by a digital signal processor.
Claim 11
Dependent Claim
19 words
The radio of claim 7, at least some of said n predetermined radio frequency channels being non-contiguous and non-adjacent.
Claim 12
Dependent Claim
22 words
The radio of claim 8, each of the multiplicity of n signals having a data rate of 1/n the aggregate data rate.
Claim 13
Dependent Claim
11 words
The radio of claim 9, said radio being a trunked-type radio.
Claim 14
Dependent Claim
168 words
A radio arranged to receive in a radio frequency band, the radio frequency band including a set of n predetermined radio frequency channels, each of the n predetermined radio frequency channels being capable of supporting a predetermined data rate, the radio being arranged for receiving a set of n modulated signals via the n predetermined radio frequency channels and forming an aggregate signal, the aggregate signal having an aggregate data rate which exceeds the predetermined data rate of any individual radio frequency channel of the set of n predetermined radio frequency channels, the radio comprising: receiving means for receiving said n modulated signals via said predetermined radio frequency channels, each of the n modulated signals being received on exactly one radio frequency channel; demodulating means for demodulating each of the n modulated signals to form n demodulated signals; and, forming means for forming an aggregate signal based on said n demodulated signals, wherein said demodulating means and said forming means are substantially comprised by a digital signal processor.
Claim 15
Dependent Claim
168 words
A radio arranged to receive in a radio frequency band, the radio frequency band including a set of n predetermined radio frequency channels, each of the n predetermined radio frequency channels being capable of supporting a predetermined data rate, the radio being arranged for receiving a set of n modulated signals via the n predetermined radio frequency channels and forming an aggregate signal, the aggregate signal having an aggregate data rate which exceeds the predetermined data rate of any individual radio frequency channel of the set of n predetermined radio frequency channels, the radio comprising: receiving means for receiving said n modulated signals via said predetermined radio frequency channels, each of the n modulated signals being received on exactly one radio frequency channel; demodulating means for demodulating each of the n modulated signals to form n demodulated signals; and, forming means for forming an aggregate signal based on said n demodulated signals, wherein said demodulating means and said forming means are substantially comprised by a digital signal processor.
Claim 16
Dependent Claim
19 words
The radio of claim 11, at least some of said n predetermined radio frequency channels being non-contiguous and non-adjacent.
Claim 17
Dependent Claim
21 words
The radio of claim 12, each of the n demodulated signals having a data rate of 1/n the aggregate data rate.
Claim 18
Dependent Claim
11 words
The radio of claim 13, said radio being a trunked-type radio.
Claim 19
Dependent Claim
146 words
A radio arranged to transmit in a radio frequency band, the radio frequency band including a set of n predetermined channels, each of the n predetermined radio frequency channels being capable of supporting a predetermined data rate, the radio arranged for transmitting an aggregate signal having an aggregate data rate which exceeds the predetermined data rate of any individual radio frequency channel of the set of n predetermined radio frequency channels, the radio comprising: a digital signal processor including; software means for forming a multiplicity of n signals, each of the multiplicity of n signals being based on said aggregate signal, and software means for modulating each of the n signals to form n modulated signals; and, transmitting means for transmitting said n modulated signals via said n predetermined radio frequency channels, each of said n modulated signals being transmitted on exactly one radio frequency channel.
Claim 20
Dependent Claim
146 words
A radio arranged to transmit in a radio frequency band, the radio frequency band including a set of n predetermined channels, each of the n predetermined radio frequency channels being capable of supporting a predetermined data rate, the radio arranged for transmitting an aggregate signal having an aggregate data rate which exceeds the predetermined data rate of any individual radio frequency channel of the set of n predetermined radio frequency channels, the radio comprising: a digital signal processor including; software means for forming a multiplicity of n signals, each of the multiplicity of n signals being based on said aggregate signal, and software means for modulating each of the n signals to form n modulated signals; and, transmitting means for transmitting said n modulated signals via said n predetermined radio frequency channels, each of said n modulated signals being transmitted on exactly one radio frequency channel.
Claim 21
Dependent Claim
160 words
A radio arranged to receive in a radio frequency band, the radio frequency band including a set of n predetermined radio frequency channels, each of the n predetermined radio frequency channels being capable of supporting a predetermined data rate, the radio being arranged for receiving a set of n modulated signals via the n predetermined radio frequency channels and for forming an aggregate signal, the aggregate signal having an aggregate data rate which exceeds the predetermined data rate of any individual radio frequency channel of the set of n predetermined radio frequency channels, the radio comprising: a digital signal processor including; software means for receiving said n modulated signals via said n predetermined radio frequency channels, each of the n modulated signals being received on exactly one radio frequency channel, and software means for demodulating each of the n modulated signals to form n demodulated signals; and, forming means for forming an aggregate signal based on said n demodulated signals.
Claim 22
Dependent Claim
160 words
A radio arranged to receive in a radio frequency band, the radio frequency band including a set of n predetermined radio frequency channels, each of the n predetermined radio frequency channels being capable of supporting a predetermined data rate, the radio being arranged for receiving a set of n modulated signals via the n predetermined radio frequency channels and for forming an aggregate signal, the aggregate signal having an aggregate data rate which exceeds the predetermined data rate of any individual radio frequency channel of the set of n predetermined radio frequency channels, the radio comprising: a digital signal processor including; software means for receiving said n modulated signals via said n predetermined radio frequency channels, each of the n modulated signals being received on exactly one radio frequency channel, and software means for demodulating each of the n modulated signals to form n demodulated signals; and, forming means for forming an aggregate signal based on said n demodulated signals.
Claim 23
Dependent Claim
142 words
A radio arranged to transmit in a radio frequency band, the radio frequency band including a set of n predetermined channels, each of the n predetermined radio frequency channels being capable of supporting a predetermined data rate, the radio arranged for transmitting an aggregate signal having an aggregate data rate which exceeds the predetermined data rate of any individual radio frequency channel of the set of n predetermined radio frequency channels, the radio comprising: a digital signal processor programmed for forming a multiplicity of n signals, each of the multiplicity of n signals being based on said aggregate signal, and for modulating each of the n signals to form n modulated signals; and, transmitting means for transmitting said n modulated signals via said n predetermined radio frequency channels, each of said n modulated signals being transmitted on exactly one radio frequency channel.
Claim 24
Dependent Claim
142 words
A radio arranged to transmit in a radio frequency band, the radio frequency band including a set of n predetermined channels, each of the n predetermined radio frequency channels being capable of supporting a predetermined data rate, the radio arranged for transmitting an aggregate signal having an aggregate data rate which exceeds the predetermined data rate of any individual radio frequency channel of the set of n predetermined radio frequency channels, the radio comprising: a digital signal processor programmed for forming a multiplicity of n signals, each of the multiplicity of n signals being based on said aggregate signal, and for modulating each of the n signals to form n modulated signals; and, transmitting means for transmitting said n modulated signals via said n predetermined radio frequency channels, each of said n modulated signals being transmitted on exactly one radio frequency channel.
Claim 25
Dependent Claim
156 words
A radio arranged to receive in a radio frequency band, the radio frequency band including a set of n predetermined radio frequency channels, each of the n predetermined radio frequency channels being capable of supporting a predetermined data rate, the radio being arranged for receiving a set of n modulated signals via the n predetermined radio frequency channels and for forming an aggregate signal, the aggregate signal having an aggregate data rate which exceeds the predetermined data rate of any individual radio frequency channel of the set of n predetermined radio frequency channels, the radio comprising: a digital signal processor programmed for receiving said n modulated signals via said n predetermined radio frequency channels, each of the n modulated signals being received on exactly one radio frequency channel, and for demodulating each of the n modulated signals to form n demodulated signals; and, forming means for forming an aggregate signal based on said n demodulated signals.
Claim 26
Dependent Claim
156 words
A radio arranged to receive in a radio frequency band, the radio frequency band including a set of n predetermined radio frequency channels, each of the n predetermined radio frequency channels being capable of supporting a predetermined data rate, the radio being arranged for receiving a set of n modulated signals via the n predetermined radio frequency channels and for forming an aggregate signal, the aggregate signal having an aggregate data rate which exceeds the predetermined data rate of any individual radio frequency channel of the set of n predetermined radio frequency channels, the radio comprising: a digital signal processor programmed for receiving said n modulated signals via said n predetermined radio frequency channels, each of the n modulated signals being received on exactly one radio frequency channel, and for demodulating each of the n modulated signals to form n demodulated signals; and, forming means for forming an aggregate signal based on said n demodulated signals.
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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) | 1996-05-03 | 1996-11-02 | 1997-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-05-03 | 2000-11-02 | 2001-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-05-03 | 2004-11-02 | 2005-05-04 | $7700.00 | Window Closed / Lapsed |