US3980973A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Line device for transmission lines having coaxial cables for the transmission of digital or analog signals
Assignee: Siemens AG
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Filing: 1975-05-05
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Granted: 1976-09-14
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Expires: 1995-05-05
Abstract
Abstract A line device for transmission lines having coaxial cables for the transmission of signals, in particular digital signals or analog signals, employs an input equalizer in the form of a line section connected in parallel or in series to the transmission path, a first switch or dividing network for dividing the transmission path into a communications transmission path and a long distance current supply path, a regenerator in the communication transmission path, a series circuit connected in the long distance supply path including a first low pass filter, an element for producing a voltage drop for the current supply of the regenerator and a second low pass filter. A second switch or dividing network rejoins the communications and long distance supply paths and an output equalizer in the form of an additional line section is connected in parallel to the transmission path or in series with the transmission path. The line sections have at least two sub-sections of different wave resistances and at least one of the sections is adjustable during the manufacturing process in respect of its wave resistance. A terminating resistance is provided for each line section.
Inventors
- 👤 Rudolf P. Hecken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:25
CPC Classifications
H; H04; H04L; H04L25/00; H04L25/02; H04L25/20; H04L25/24; H04L25/242; H01; H01P; H01P1/00; H01P1/24; H04B; H04B3/00; H04B3/02; H04B3/36
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
173 words
A line for transmission paths having coaxial cables for the transmission of digital signals, comprising: an input equalizer, in the form of a line section, connected to the transmission path; a first circuit means connected to said input equalizer and dividing the transmission path into a communications transmission path and a long distance current supply path; a regenerator in said communications transmission path; a series circuit in said long distance current supply path, said series circuit including a first low pass filter, an element producing a voltage drop for the current supply of said regenerator and a second low pass filter; a second circuit means rejoining said communications transmission path and said long distance current supply path; and an output equalizer, in the form of a line section, connecting said second circuit means to said transmission path, each of said line sections including at least two sub-sections having different wave resistances and at least one of said sub-sections having a preset wave resistance, and a terminating resistance for each of said line sections.
Claim 2
Dependent Claim
173 words
A line for transmission paths having coaxial cables for the transmission of digital signals, comprising: an input equalizer, in the form of a line section, connected to the transmission path; a first circuit means connected to said input equalizer and dividing the transmission path into a communications transmission path and a long distance current supply path; a regenerator in said communications transmission path; a series circuit in said long distance current supply path, said series circuit including a first low pass filter, an element producing a voltage drop for the current supply of said regenerator and a second low pass filter; a second circuit means rejoining said communications transmission path and said long distance current supply path; and an output equalizer, in the form of a line section, connecting said second circuit means to said transmission path, each of said line sections including at least two sub-sections having different wave resistances and at least one of said sub-sections having a preset wave resistance, and a terminating resistance for each of said line sections.
Claim 3
Dependent Claim
30 words
The line device of claim 1, wherein said first and second circuit means each comprise at least one capacitor connected in parallel with a respective one of said terminating resistances.
Claim 4
Dependent Claim
18 words
The line device of claim 1, wherein each terminating resistance comprises a resistance layer carried on a substrate.
Claim 5
Dependent Claim
19 words
The line device of claim 1, wherein each said terminating resistance is constructed in the form of a chip.
Claim 6
Dependent Claim
22 words
The line device of claim 1, wherein each of said line sections includes input terminals adapted to be soldered to coaxial cables.
Claim 7
Dependent Claim
40 words
The line device of claim 1, wherein each of said line sections comprises at least one outer conductor and an inner conductor, and wherein said inner conductors form parts of and are included in said long distance current supply path.
Claim 8
Dependent Claim
19 words
The line device of claim 1, comprising a gas filled voltage arrester connected in parallel with a terminating resistance.
Claim 9
Dependent Claim
19 words
The line device of claim 1, wherein said terminating resistances each comprise a voltage dependent resistance for over-voltage protection.
Claim 10
Dependent Claim
30 words
The line device of claim 1, wherein said first and second circuit means each comprise at least one capacitor connected in series with a respective one of said terminating resistances.
Claim 11
Dependent Claim
28 words
The line device according to claim 9, comprising a gas filled voltage arrester connected in parallel with a series connection of said capacitor and the respective terminating resistance.
Claim 12
Dependent Claim
59 words
The line device of claim 1, comprising a substrate, each of said line sections including an inner conductor carried on said substrate and at least one common outer conductor for said inner conductors, said first low pass filter, said voltage drop element and said second low pass filter connected between said inner conductors and located within said outer conductor.
Claim 13
Dependent Claim
32 words
The line device of claim 11, wherein said outer conductor is in the form of a housing including shields between the line sections and their respective terminating resistances and low pass filters.
Claim 14
Dependent Claim
34 words
The line device of claim 1, wherein each of said line sections comprises a substrate, an inner conductor carried on said substrate, and an outer conductor disposed on both sides of said inner conductor.
Claim 15
Dependent Claim
17 words
The line device of claim 13, wherein said outer conductor comprises a housing surrounding said inner conductor.
Claim 16
Dependent Claim
36 words
The line device of claim 13, wherein said inner conductor extends along a path which is longer than the straight line distance between its ends to make its straight line length shorter than its electrical length.
Claim 17
Dependent Claim
16 words
The line device of claim 13, wherein said line sections comprises a multilayer printed circuit structure.
Claim 18
Dependent Claim
51 words
The device of claim 1, wherein each of said line sections comprises a single layer technique structure including a substrate, an inner conductor carried on one surface of said substrate and a pair of outer conductors carried on said one surface spaced from and on opposite sides of said inner conductor.
Claim 19
Dependent Claim
20 words
The device of claim 17, wherein said inner conductor of each of said line sections extends along a nonlinear path.
Claim 20
Dependent Claim
20 words
The device according to claim 17, wherein said terminating resistance of each of said line circuits comprises a printed resistance.
Claim 21
Dependent Claim
21 words
The device according to claim 17, wherein said terminating resistance of each of said line circuits comprises a thin film resistance.
Claim 22
Dependent Claim
21 words
The device according to claim 17, wherein said terminating resistance of each of said line circuits comprises a thick film resistance.
Claim 23
Dependent Claim
34 words
The device according to claim 1, wherein each of said line sections comprises a conductive housing serving as an outer conductor, a substrate within said housing and an inner conductor carried on said substrate.
Claim 24
Dependent Claim
21 words
The device according to claim 22, wherein said inner conductor of each of said line sections extends along a nonlinear path.
Claim 25
Dependent Claim
21 words
The device according to claim 22, wherein said terminating resistance of each of said line sections is a printed circuit resistance.
Claim 26
Dependent Claim
21 words
The device according to claim 22, wherein said terminating resistance of each of said line sections is a thin film resistance.
Claim 27
Dependent Claim
21 words
The device according to claim 22, wherein said terminating resistance of each of said line sections is a thick film resistance.
Claim 28
Dependent Claim
174 words
A line device for transmission of analog signals over a transmission path having coaxial cables, comprising: an input equalizer, in the form of a line section, connected to the transmission path; a first circuit means connected to said input equalizer and dividing the transmission path into a communications transmission path and a long distance current supply path; an amplifier in said communications transmission path; a series circuit in said long distance current supply path, said series circuit including a first low pass filter, an element producing a voltage drop for the current supply of said amplifier, and a second low pass filter; a second circuit means rejoining said communications transmission path and said long distance current supply path; and an output equalizer in the form of a line section, connecting said second circuit means to said transmission path, each of said line sections including at least two sub-sections having different wave resistances and at least one of said sub-sections having a preset wave resistance, and a terminating resistance for each of said line sections.
Claim 29
Dependent Claim
174 words
A line device for transmission of analog signals over a transmission path having coaxial cables, comprising: an input equalizer, in the form of a line section, connected to the transmission path; a first circuit means connected to said input equalizer and dividing the transmission path into a communications transmission path and a long distance current supply path; an amplifier in said communications transmission path; a series circuit in said long distance current supply path, said series circuit including a first low pass filter, an element producing a voltage drop for the current supply of said amplifier, and a second low pass filter; a second circuit means rejoining said communications transmission path and said long distance current supply path; and an output equalizer in the form of a line section, connecting said second circuit means to said transmission path, each of said line sections including at least two sub-sections having different wave resistances and at least one of said sub-sections having a preset wave resistance, and a terminating resistance for each of said line sections.
References Cited (Backward Citations)
US3268836A
Cited
US3491298A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-09-14 | 1980-03-15 | 1980-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-09-14 | 1984-03-15 | 1984-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-09-14 | 1988-03-15 | 1988-09-14 | $7700.00 | Window Closed / Lapsed |