Patent US5832247A successfully refreshed from Google Patents.
US5832247A
Expired / Lapsed
US
⏱️ 0.0 years remaining
PCI card for receiving a GPS signal
Assignee: Trimble Inc
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Filing: 1997-07-31
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Granted: 1998-11-03
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Expires: 2017-07-31
Abstract
Abstract A peripheral component interconnect (PCI) global positioning system (GPS) card for receiving a GPS signal. In a first embodiment the PCI card includes a GPS downconverter. In a second embodiment the PCI card including the GPS downconverter is integrated into a personal computer for correlating a GPS signal and computing a GPS location. In a third embodiment the PCI card includes a GPS downconverter and a GPS correlator. In a fourth embodiment the PCI card including the GPS downconverter and the GPS correlator is integrated into a personal computer for computing a GPS location.
Inventors
- 👤 David R. Gildea
- 👤 Mark L. Nagel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:26
CPC Classifications
G; G01; G01S; G01S19/00; G01S19/01; G01S19/13; G01S19/35; G01S19/37
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
114 words
A peripheral component interconnect (PCI) Global Positioning System (GPS) downconverter apparatus for connection to a PCI bus, comprising: a GPS downconverter for receiving a GPS signal including GPS location data and issuing a downconverted GPS signal; a GPS quantizer coupled to the downconverter for sampling said downconverted GPS signal and issuing a quantized GPS signal representative of said GPS signal; and a PCI bus bridge coupled to the quantizer for formatting said quantized GPS signal according to a PCI bus format, and for issuing a PCI-formatted quantized GPS signal including said GPS location data to a PCI bus, said PCI-formatted quantized GPS signal intended for a compatible computer for deriving a GPS based location.
Claim 2
Dependent Claim
114 words
A peripheral component interconnect (PCI) Global Positioning System (GPS) downconverter apparatus for connection to a PCI bus, comprising: a GPS downconverter for receiving a GPS signal including GPS location data and issuing a downconverted GPS signal; a GPS quantizer coupled to the downconverter for sampling said downconverted GPS signal and issuing a quantized GPS signal representative of said GPS signal; and a PCI bus bridge coupled to the quantizer for formatting said quantized GPS signal according to a PCI bus format, and for issuing a PCI-formatted quantized GPS signal including said GPS location data to a PCI bus, said PCI-formatted quantized GPS signal intended for a compatible computer for deriving a GPS based location.
Claim 3
Dependent Claim
81 words
The apparatus of claim 1, further including: a local oscillator for generating a local oscillator signal; and wherein: the downconverter is coupled to said local oscillator for using said local oscillator signal for downconverting said GPS signal; the quantizer is coupled to the local oscillator for using said local oscillator signal for sampling said downconverted GPS signal at a certain phase of said local oscillator signal; and said PCI-formatted quantized signal includes information for said phase of said local oscillator signal.
Claim 4
Dependent Claim
16 words
The apparatus of claim 1, wherein: said PCI bus is disposed in a PCI-compatible personal computer.
Claim 5
Dependent Claim
153 words
A Global Positioning System (GPS) receiver for receiving a GPS signal including GPS location data and providing a GPS-derived location, comprising: a peripheral component interconnect (PCI) Global Positioning System (GPS) downconverter apparatus including a GPS downconverter for receiving said GPS signal and issuing a downconverted GPS signal; a GPS quantizer coupled to said downconverter for sampling said downconverted GPS signal and issuing a quantized GPS signal representative of said GPS signal; and a first PCI bus bridge coupled to said quantizer for formatting said quantized GPS signal according to a PCI bus format, and for issuing a PCI-formatted quantized GPS signal including said GPS location data to a PCI bus; and a personal computer (PC) including a second PCI bus bridge coupled to said PCI bus for receiving said PCI-formatted quantized GPS signal, and processing means coupled to said second PCI-bus bridge for determining said GPS-derived location based upon said GPS location data.
Claim 6
Dependent Claim
153 words
A Global Positioning System (GPS) receiver for receiving a GPS signal including GPS location data and providing a GPS-derived location, comprising: a peripheral component interconnect (PCI) Global Positioning System (GPS) downconverter apparatus including a GPS downconverter for receiving said GPS signal and issuing a downconverted GPS signal; a GPS quantizer coupled to said downconverter for sampling said downconverted GPS signal and issuing a quantized GPS signal representative of said GPS signal; and a first PCI bus bridge coupled to said quantizer for formatting said quantized GPS signal according to a PCI bus format, and for issuing a PCI-formatted quantized GPS signal including said GPS location data to a PCI bus; and a personal computer (PC) including a second PCI bus bridge coupled to said PCI bus for receiving said PCI-formatted quantized GPS signal, and processing means coupled to said second PCI-bus bridge for determining said GPS-derived location based upon said GPS location data.
Claim 7
Dependent Claim
86 words
The receiver of claim 4, wherein: the PCI GPS apparatus further includes a local oscillator for generating a local oscillator signal and wherein: said downconverter is coupled to said local oscillator for using said local oscillator signal for downconverting said GPS signal; said quantizer is coupled to said local oscillator for using said local oscillator signal for sampling said downconverted GPS signal at a certain phase of said local oscillator signal; and said PCI-formatted quantized signal includes information for said phase of said local oscillator signal.
Claim 8
Dependent Claim
150 words
A peripheral component interconnect (PCI) Global Positioning System (GPS) correlator apparatus for connection to a PCI bus, comprising: a GPS replica generator for generating a replica signal having a pseudorandom noise (PRN) code predictive of a GPS signal and a timing of said code, receiving feedback adjustment data, and adjusting said timing according to said feedback adjustment data; GPS correlation means for receiving a GPS signal having GPS location data and coupled to the replica generator for issuing correlation data for a correlation between said GPS signal and said replica signal; and a PCI bus bridge, coupled to the GPS correlation means for formatting said correlation data according to a PCI bus format and issuing PCI-formatted correlation data to said PCI bus; and receiving said feedback adjustment data in said PCI format from said PCI bus, stripping said PCI format, and passing said feedback adjustment data to the replica generator.
Claim 9
Dependent Claim
150 words
A peripheral component interconnect (PCI) Global Positioning System (GPS) correlator apparatus for connection to a PCI bus, comprising: a GPS replica generator for generating a replica signal having a pseudorandom noise (PRN) code predictive of a GPS signal and a timing of said code, receiving feedback adjustment data, and adjusting said timing according to said feedback adjustment data; GPS correlation means for receiving a GPS signal having GPS location data and coupled to the replica generator for issuing correlation data for a correlation between said GPS signal and said replica signal; and a PCI bus bridge, coupled to the GPS correlation means for formatting said correlation data according to a PCI bus format and issuing PCI-formatted correlation data to said PCI bus; and receiving said feedback adjustment data in said PCI format from said PCI bus, stripping said PCI format, and passing said feedback adjustment data to the replica generator.
Claim 10
Dependent Claim
30 words
The PCI GPS correlator apparatus of claim 6, wherein: the GPS correlation means further includes a GPS downconverter for receiving said GPS signal and issuing a representative downconverted GPS signal.
Claim 11
Dependent Claim
181 words
A Global Positioning System (GPS) receiver for receiving a GPS signal including GPS location data and providing a GPS-derived location, comprising: a peripheral component interconnect (PCI) GPS correlator apparatus including a GPS replica generator for generating a replica signal having a pseudorandom noise (PRN) code predictive of a GPS signal and a timing of said code, receiving feedback adjustment data, and adjusting said timing according to said feedback adjustment data; GPS correlation means for receiving said GPS signal and coupled to the replica generator for providing correlation data including said GPS location data for a correlation between said GPS signal and said replica signal; and a first PCI bus bridge coupled to the GPS correlation means for formatting said correlation data according to a PCI bus format, and for issuing said PCI-formatted correlation data to a PC bus; and a personal computer (PC) including a second PCI bus bridge coupled to said PCI bus for receiving said PCI-formatted GPS correlation data, and processing means coupled to said second PCI-bus bridge for determining said GPS-derived location based upon said GPS location data.
Claim 12
Dependent Claim
181 words
A Global Positioning System (GPS) receiver for receiving a GPS signal including GPS location data and providing a GPS-derived location, comprising: a peripheral component interconnect (PCI) GPS correlator apparatus including a GPS replica generator for generating a replica signal having a pseudorandom noise (PRN) code predictive of a GPS signal and a timing of said code, receiving feedback adjustment data, and adjusting said timing according to said feedback adjustment data; GPS correlation means for receiving said GPS signal and coupled to the replica generator for providing correlation data including said GPS location data for a correlation between said GPS signal and said replica signal; and a first PCI bus bridge coupled to the GPS correlation means for formatting said correlation data according to a PCI bus format, and for issuing said PCI-formatted correlation data to a PC bus; and a personal computer (PC) including a second PCI bus bridge coupled to said PCI bus for receiving said PCI-formatted GPS correlation data, and processing means coupled to said second PCI-bus bridge for determining said GPS-derived location based upon said GPS location data.
Claim 13
Independent Claim
131 words
A method for receiving a Global Positioning System (GPS) signal including GPS location data in a personal computer and determining a GPS-derived location, comprising steps of: receiving said GPS signal in a GPS peripheral component interconnect (PCI) apparatus embedded in said personal computer; downconverting said GPS signal and issuing a downconverted GPS signal; quantizing said downconverted signal; formatting said quantized GPS signal according to a PCI bus format and issuing a PCI-formatted quantized GPS signal including said GPS location data from said GPS PCI apparatus to a PCI bus in said personal computer; converting said PCI-formatted quantized GPS signal to a host bus GPS signal; correlating said host bus GPS signal to provide correlation data including information for said GPS location data; and determining said GPS-derived location from said correlation data.
Claim 14
Independent Claim
131 words
A method for receiving a Global Positioning System (GPS) signal including GPS location data in a personal computer and determining a GPS-derived location, comprising steps of: receiving said GPS signal in a GPS peripheral component interconnect (PCI) apparatus embedded in said personal computer; downconverting said GPS signal and issuing a downconverted GPS signal; quantizing said downconverted signal; formatting said quantized GPS signal according to a PCI bus format and issuing a PCI-formatted quantized GPS signal including said GPS location data from said GPS PCI apparatus to a PCI bus in said personal computer; converting said PCI-formatted quantized GPS signal to a host bus GPS signal; correlating said host bus GPS signal to provide correlation data including information for said GPS location data; and determining said GPS-derived location from said correlation data.
Claim 15
Dependent Claim
78 words
The method of claim 9, further including a step of: generating a local oscillator signal; and wherein: the step of downconverting includes a step of using said local oscillator signal for downconverting said GPS signal; the step of quantizing includes a step of using said local oscillator signal for sampling said downconverted GPS signal at a certain phase of said local oscillator signal; and said PCI-formatted GPS signal includes information for said phase of said local oscillator signal.
Claim 16
Independent Claim
194 words
A method for receiving a Global Positioning System (GPS) signal including GPS location data in a personal computer and determining a GPS-derived location, comprising steps of: receiving said GPS signal in a GPS peripheral component interconnect (PCI) apparatus embedded in said personal computer; downconverting said GPS signal and issuing a downconverted GPS signal; generating a replica signal having a pseudorandom noise (PRN) code predictive of said GPS signal and a timing of said code; correlating said downconverted GPS signal with at least one correlator and issuing a correlation signal including correlation data including information for said GPS location data; formatting said correlation signal according to a PCI bus format and issuing a PCI-formatted correlation signal from said GPS PCI apparatus to a PCI bus in said personal computer; converting said PCI-formatted correlation signal to a host bus correlation signal including said correlation data; receiving in said GPS PCI apparatus said feedback adjustment data in said PCI format from said PCI bus; stripping said PCI formatting from said feedback adjustment data; adjusting said timing according to feedback adjustment data; and determining said GPS-derived location from said GPS location information in said host bus correlation signal.
Claim 17
Independent Claim
194 words
A method for receiving a Global Positioning System (GPS) signal including GPS location data in a personal computer and determining a GPS-derived location, comprising steps of: receiving said GPS signal in a GPS peripheral component interconnect (PCI) apparatus embedded in said personal computer; downconverting said GPS signal and issuing a downconverted GPS signal; generating a replica signal having a pseudorandom noise (PRN) code predictive of said GPS signal and a timing of said code; correlating said downconverted GPS signal with at least one correlator and issuing a correlation signal including correlation data including information for said GPS location data; formatting said correlation signal according to a PCI bus format and issuing a PCI-formatted correlation signal from said GPS PCI apparatus to a PCI bus in said personal computer; converting said PCI-formatted correlation signal to a host bus correlation signal including said correlation data; receiving in said GPS PCI apparatus said feedback adjustment data in said PCI format from said PCI bus; stripping said PCI formatting from said feedback adjustment data; adjusting said timing according to feedback adjustment data; and determining said GPS-derived location from said GPS location information in said host bus correlation signal.
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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) | 2001-11-02 | 2002-05-04 | 2002-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-11-02 | 2006-05-04 | 2006-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-11-02 | 2010-05-04 | 2010-11-03 | $7700.00 | Window Closed / Lapsed |