US4879739A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wiring test device and method
Assignee: Individual
•
Filing: 1988-12-14
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Granted: 1989-11-07
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Expires: 2008-12-14
Abstract
Abstract A battery powered, hand-held signal generator adapted to be connected to home or business telephone line at the interface between the telephone company wiring or the home or business wiring. The signal generator successively applies a uniquely coded pulsed signal to each wire of the line. The invention further includes a hand-held receiver adapted to be plugged into each modular telephone jack of the home or business line. The receiver contains four separate receiving circuits, one of which is connected to each wire of the line. Each receiving circuit includes a visual indicator such as an LED for visually indicating reception of a pulsed signal through that wire. By monitoring the reception of pulses over each wire, the user of the device can determine if each of the wires is properly connected. Reception of the wrong code on a given wire indicates a cross connection with the wire on which the received code is transmitted. Reception of the same code on more than one wire indicates a short between the wires. Failure to receive any code on a wire indicates an open break.
Inventors
- 👤 Henry M. Forson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:57
CPC Classifications
H; H04; H04Q; H04Q11/00; H04Q11/04; H04Q11/0428; H04Q11/0435; H04Q11/045; H04M; H04M1/00; H04M1/24; H04M3/00; H04M3/22; H04M3/24; H04M3/244; H04M3/245; H04M3/26; H04M3/28; H04M3/30
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
94 words
A system for detecting faults in a line which consists of a plurality of wires therein, comprising: a generating means having a generating port, which is removably connectable to one end of said line, for generating coded pulsed signals on each of said plurality of wires, and a receiving means having a receiving port, which is removably connectable to an opposite end of said line, for receiving and displaying said coded pulsed signals generated by said generating means, wherein said coded pulsed signals are uniquely distinct signals for each of said plurality of wires.
Claim 2
Independent Claim
94 words
A system for detecting faults in a line which consists of a plurality of wires therein, comprising: a generating means having a generating port, which is removably connectable to one end of said line, for generating coded pulsed signals on each of said plurality of wires, and a receiving means having a receiving port, which is removably connectable to an opposite end of said line, for receiving and displaying said coded pulsed signals generated by said generating means, wherein said coded pulsed signals are uniquely distinct signals for each of said plurality of wires.
Claim 3
Dependent Claim
67 words
The system as claimed in claim 1, wherein said receiving means comprises: a plurality of receiving circuits connected to said receiving port, each of said plurality of receiving circuits being associated with a corresponding one of said plurality of wires, and a plurality of display means, each associated with a corresponding one of said receiving circuits, for displaying the coded pulsed signals generated by said generating means.
Claim 4
Dependent Claim
39 words
The system as claimed in claim 1, wherein said coded pulsed signals consist of one pulse for a first wire, two pulses for a second wire, three pulses for a third wire, and four pulses for a fourth wire.
Claim 5
Dependent Claim
14 words
The system as claimed in claim 1, wherein said line is a telephone line.
Claim 6
Dependent Claim
17 words
The system as claimed in claim 1, wherein said line is an integrated services digital network line.
Claim 7
Dependent Claim
17 words
The system as claimed in claim 1, wherein said generating port and receiving port are modular-type jacks.
Claim 8
Dependent Claim
17 words
The system as claimed in claim 2, wherein said plurality of display means are light emitting diodes.
Claim 9
Dependent Claim
25 words
The system as claimed in claim 2, wherein each of said receiving circuits includes a current limiter for controlling current supplied to said display means.
Claim 10
Dependent Claim
25 words
The system as claimed in claim 1, wherein said generating means and receiving means are hand-held portable units, and said generating means is battery operated.
Claim 11
Dependent Claim
33 words
The system as claimed in claim 9, wherein said generating means further includes a lighted on/off switch for turning on the generating means and for visually indicating battery strength of said battery power.
Claim 12
Independent Claim
86 words
A method for testing a line for detecting faults in a line which consists of a plurality of wires, comprising the steps of: generating a uniquely distinct coded pulsed signal on each of said plurality of wires at one end of said line, receiving said coded pulsed signals generated on each of said plurality of wires at an opposite end of said line, and displaying each of the coded pulsed signals received on each of said plurality of wires at said opposite end of said line.
Claim 13
Independent Claim
86 words
A method for testing a line for detecting faults in a line which consists of a plurality of wires, comprising the steps of: generating a uniquely distinct coded pulsed signal on each of said plurality of wires at one end of said line, receiving said coded pulsed signals generated on each of said plurality of wires at an opposite end of said line, and displaying each of the coded pulsed signals received on each of said plurality of wires at said opposite end of said line.
Claim 14
Dependent Claim
59 words
The method for testing as claimed in claim 11, said method further comprising the steps of: coupling a generator for generating said uniquely distinct coded pulsed signals at said one end of said line with a modular jack, and coupling a receiver for receiving said coded pulsed signals to said opposite end of said line with a modular jack.
Claim 15
Dependent Claim
29 words
The method for testing as claimed in claim 11, wherein said displaying step comprises visually displaying the received coded pulsed signals by lighting LED indicators provided on said receiver.
Claim 16
Dependent Claim
34 words
The method for testing as claimed in claim 13, wherein said received coded pulsed signals are visually displayed on separate LEDs, which are provided for each of the plurality of wires in said line.
References Cited (Backward Citations)
US4596904A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-11-06 | 1993-05-08 | 1993-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-11-06 | 1997-05-08 | 1997-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-11-06 | 2001-05-08 | 2001-11-07 | $7700.00 | Window Closed / Lapsed |