US5801643A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Remote utility meter reading system
Assignee: Northrop Grumman Systems Corp
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Filing: 1997-02-20
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Granted: 1998-09-01
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Expires: 2017-02-20
Abstract
Abstract In a method for transmitting a desired parameter to a remote location, the desired parameter is first communicated to a base transmitter. Then, the base transmitter transmits a first radio signal therefrom having an unknown center frequency within a known frequency band. The first radio signal comprises information representative of the desired parameter. At a remote location, a remote receiver identifies the center frequency of the first radio signal and tunes the remote receiver to the center frequency thereof so as to facilitate reception of the first radio signal with the remote receiver. The information representative of the desired parameter may then be communicated to a desired destination.
Inventors
- 👤 Roger B. Williams
- 👤 Thomas E. Szmurlo
- 👤 Warren E. Guthrie
- 👤 James Jensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:16
CPC Classifications
G; G06; G06K; G06K7/00; G06K7/0008; G01; G01D; G01D4/00; G01D4/002; G01D4/004; G01R; G01R22/00; G06K17/00; G06K17/0022; G06K19/00; G06K19/06; G06K19/067; G06K19/07; G06K19/0716; G06K7/10; G06K7/10009; G06K7/10019; G06K7/10029; G06K7/10059; G06K7/10316; G06K7/10356; G06Q; G06Q10/00; G06Q10/08; G06Q10/087; G08; G08C; G08C17/00; G08C17/02; H; H04; H04Q; H04Q9/00; H04Q2209/00; H04Q2209/40; H04Q2209/60; Y; Y02; Y02B; Y02B90/00; Y02B90/20; Y04; Y04S; Y04S20/00; Y04S20/30
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
80 words
A method for transmitting a desired parameter from a base station to a remote location, the method comprising the steps of: a) transmitting a first radio signal via pulse position modulation from the base transmitter to a relay transceiver disposed at a location intermediated the base station and the remote location; b) receiving the first radio signal with the relay transceiver; and c) relaying the data via direct sequence spread spectrum modulation from the relay transceiver to the remote location.
Claim 2
Independent Claim
80 words
A method for transmitting a desired parameter from a base station to a remote location, the method comprising the steps of: a) transmitting a first radio signal via pulse position modulation from the base transmitter to a relay transceiver disposed at a location intermediated the base station and the remote location; b) receiving the first radio signal with the relay transceiver; and c) relaying the data via direct sequence spread spectrum modulation from the relay transceiver to the remote location.
Claim 3
Dependent Claim
39 words
The method as recited in claim 1, further comprising the step of transmitting a second radio signal from the remote location to the base station, the second radio signal comprising instructions for regulating operation of at least one device.
Claim 4
Dependent Claim
37 words
The method as recited in claim 1, wherein the step of transmitting a first radio signal comprises transmitting a first radio signal having a duration of less than approximately 100 milliseconds so as to mitigate communications contention.
Claim 5
Dependent Claim
45 words
The method as recited in claim 1, further comprising the steps of: a) compressing data representative of the desired parameter; b) storing the compressed data; and c) transmitting the compressed data to a desired location via telephone at a time when telephone rates are favorable.
Claim 6
Dependent Claim
28 words
The method as recited in claim 1, wherein the step of transmitting a first radio signal comprises transmitting a first radio signal representative of a utility meter reading.
Claim 7
Independent Claim
89 words
A system for transmitting a desired parameter from a base station to a remote location, the system comprising: a) a base transmitter disposed at the base station and configured to transmit a first radio signal via pulse position modulation to a relay transceiver disposed at a location intermediated the base station and the remote location; and b) a relay transceiver configured to receive the pulse position modulated first radio signal and to relay the data via direct sequence spread spectrum modulation from the relay transceiver to the remote location.
Claim 8
Independent Claim
89 words
A system for transmitting a desired parameter from a base station to a remote location, the system comprising: a) a base transmitter disposed at the base station and configured to transmit a first radio signal via pulse position modulation to a relay transceiver disposed at a location intermediated the base station and the remote location; and b) a relay transceiver configured to receive the pulse position modulated first radio signal and to relay the data via direct sequence spread spectrum modulation from the relay transceiver to the remote location.
Claim 9
Dependent Claim
41 words
The system as recited in claim 6, wherein the relay transmitter is configured to transmit a second radio signal from the remote location to the base station, the second radio signal comprising instructions for regulating operation of at least one device.
Claim 10
Dependent Claim
34 words
The system as recited in claim 6, wherein the base transmitter is configured to transmit a first radio signal having a duration of less than approximately 100 milliseconds so as to mitigate communications contention.
Claim 11
Dependent Claim
57 words
The system as recited in claim 6, further comprising: a) a circuit for compressing data representative of the desired parameter; and b) a memory for storing the compressed data; c) wherein compressing and storing the data facilitate subsequent transmission of the compressed data to a desired location via telephone at a time when telephone rates are favorable.
Claim 12
Dependent Claim
25 words
The system as recited in claim 6, wherein the base transmitter is configured to transmit a first radio signal representative of a utility meter reading.
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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) | 2001-08-31 | 2002-03-02 | 2002-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-08-31 | 2006-03-02 | 2006-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-08-31 | 2010-03-02 | 2010-09-01 | $7700.00 | Window Closed / Lapsed |