US7110433B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spread spectrum, cross-correlated and filtered modulated systems
Assignee: Quarterhill Inc
•
Filing: 2005-04-18
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Granted: 2006-09-19
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Expires: 2025-04-18
Abstract
Abstract Spread Spectrum baseband signals, in-phase and quadrature-phase cross-correlated baseband signals and other filtered baseband signals connected to modulators for providing modulated signals. Modulator selection for modulated signal selection or for multiple modulated signals provided to one or more antennas for signal transmission.
Inventors
- 👤 Kamilo Feher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:43
CPC Classifications
H; H04; H04B; H04B7/00; H04B7/02; H04B7/04; H04B7/08; H04B7/0837; H04B7/0842; H04B7/0848; H04B7/0854; H04B7/06; H04B7/0602; H04L; H04L1/00; H04L1/20; H04L1/205; H04L25/00; H04L25/38; H04L25/40; H04L25/49; H04L25/4902; H04L27/00; H04L27/0004; H04L27/0008; H04L27/01; H04L27/18; H04L27/186; H04L27/20; H04L27/2003; H04L27/2007; H04L27/2017; H04L27/32; H04L27/34; H04L5/00; H04L5/0001; H04L5/0003; H04L5/0005; H04L5/0007; H04L5/0008; H04L5/0028; H04L7/00; H04L7/0008; H04B2201/00; H04B2201/69; H04B2201/707; H04B2201/70703; H04L25/02; H04L25/03; H04L25/03006; H04L2025/0335; H04L2025/03375; H04L2025/03414; H04L25/03012; H04L25/03019; H04L25/03038; H04L25/0305; H04L25/03057; H04L25/0307; H04L27/26; H04L27/2601; H04L27/2626; H04L27/2627; H04L27/2637; H04L5/0014; H04L5/0016; Y; Y02; Y02D; Y02D30/00; Y02D30/70
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
74 words
A system comprising: a first modulator for receiving spread spectrum in-phase and quadrature-phase baseband signals and modulating the spread spectrum signals; a second modulator for receiving cross-correlated in-phase and quadrature-phase baseband signals and modulating the cross-correlated signals; and a connection circuit for providing either the modulated spread spectrum signal or the modulated cross-correlated signal or both the modulated spread spectrum signal and the modulated cross-correlated signals to one or more antennas for signal transmission.
Claim 2
Independent Claim
74 words
A system comprising: a first modulator for receiving spread spectrum in-phase and quadrature-phase baseband signals and modulating the spread spectrum signals; a second modulator for receiving cross-correlated in-phase and quadrature-phase baseband signals and modulating the cross-correlated signals; and a connection circuit for providing either the modulated spread spectrum signal or the modulated cross-correlated signal or both the modulated spread spectrum signal and the modulated cross-correlated signals to one or more antennas for signal transmission.
Claim 3
Dependent Claim
20 words
The system as in claim 1 wherein the spread spectrum signals are comprised of Code Division Multiple Access (CDMA) signals.
Claim 4
Dependent Claim
20 words
The system as in claim 1 wherein the spread spectrum signals are comprised of Collision Sense Multiple Access (CSMA) signals.
Claim 5
Dependent Claim
18 words
The system as in claim 1 wherein the cross-correlated signals are comprised of Gaussian filtered cross-correlated baseband signals.
Claim 6
Dependent Claim
20 words
The system as in claim 1 wherein the cross-correlated signals are comprised of baseband signals used in a GSM system.
Claim 7
Independent Claim
80 words
A system comprising: a first quadrature modulator for modulation of in-phase and quadrature-phase baseband spread spectrum cross-correlated signals received by the input baseband port of the first modulator; a second modulator for modulation of a filtered baseband signal received by the input baseband port of the second modulator; and a connection circuit for providing either the spread spectrum modulated signal or the filtered modulated signal or both the modulated spread spectrum signal and the modulated filtered signals to a transmitter.
Claim 8
Independent Claim
80 words
A system comprising: a first quadrature modulator for modulation of in-phase and quadrature-phase baseband spread spectrum cross-correlated signals received by the input baseband port of the first modulator; a second modulator for modulation of a filtered baseband signal received by the input baseband port of the second modulator; and a connection circuit for providing either the spread spectrum modulated signal or the filtered modulated signal or both the modulated spread spectrum signal and the modulated filtered signals to a transmitter.
Claim 9
Dependent Claim
20 words
The system as in claim 6 wherein the spread spectrum signals are comprised of Code Division Multiple Access (CDMA) signals.
Claim 10
Dependent Claim
20 words
The system as in claim 6 wherein the spread spectrum signals are comprised of Collision Sense Multiple Access (CSMA) signals.
Claim 11
Dependent Claim
19 words
The system as in claim 6 wherein the cross-correlated signals are baseband signals in accordance with GSM system requirements.
Claim 12
Dependent Claim
28 words
The system as in claim 6 wherein the filtered baseband signal is generated by a Time Constrained Signal (TCS) waveform processor connected to a Long Response (LR) filter.
Claim 13
Independent Claim
72 words
A system comprising: a first modulator for modulation of spread spectrum cross-correlated in-phase and quadrature-phase baseband signals received by an input baseband port of the first modulator; a second modulator for modulation of a spread spectrum filtered baseband signal received by an input baseband port of the second modulator; and a connection circuit for providing either the first modulated signal or the second modulated signal or both modulated signals to a transmitter.
Claim 14
Independent Claim
72 words
A system comprising: a first modulator for modulation of spread spectrum cross-correlated in-phase and quadrature-phase baseband signals received by an input baseband port of the first modulator; a second modulator for modulation of a spread spectrum filtered baseband signal received by an input baseband port of the second modulator; and a connection circuit for providing either the first modulated signal or the second modulated signal or both modulated signals to a transmitter.
Claim 15
Dependent Claim
21 words
The system as in claim 11 further including one or more amplifiers for amplifying one or both modulated spread spectrum signals.
Claim 16
Dependent Claim
29 words
The system as in claim 11 further including in the first, second, or both modulation circuits one or two non-linear-amplifiers (NLA) for non-linear amplification of the filtered modulated signals.
Claim 17
Dependent Claim
29 words
The system as in claim 11 wherein the spread spectrum filtered baseband signal is generated by a Time Constrained Signal (TCS) processor connected to a Long Response (LR) filter.
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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) | 2009-09-18 | 2010-03-20 | 2010-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2013-09-18 | 2014-03-20 | 2014-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2017-09-18 | 2018-03-20 | 2018-09-19 | $7700.00 | Window Closed / Lapsed |