1
Ian A Whyte: Power supply for power line carrier communication systems. Westinghouse Electric Corporation, R W Smith, January 18, 1977: US04004110 (88 worldwide citation)

Apparatus for powering a signal amplifier or repeater connected to the primary or high-voltage portion of a power distribution system. Oscillator and amplifier circuits are energized by power from the secondary or low-voltage portion of the power distribution system. The oscillator and amplifier cir ...


2
Akihiko Nagatomi: Satellite broadcast signal receiving system. DX Antenna Company, Eugene E Geoffrey Jr, April 2, 1985: US04509198 (77 worldwide citation)

A satellite broadcast signal receiving system for receiving a plurality of signals of individual transmission bands, which are mutually different in frequency and/or polarization angle, transmitted through an artificial satellite, wherein the signals picked up by an antenna or antennas are first app ...


3
Igor Berlin, William Patrick Cune, Jason Elliott Greene, Christian Heidler, James Arthur Register III, Wolfgang Gottfried Tobias Schweiker: Providing digital data services as electrical signals and radio-frequency (RF) communications over optical fiber in distributed communications systems, and related components and methods. Corning Optical Communications, C Keith Montgomery, November 8, 2016: US09490913 (73 worldwide citation)

Distributed communications systems providing and supporting radio frequency (RF) communication services and digital data services, and related components and methods are disclosed. The RF communication services can be distributed over optical fiber to client devices, such as remote units for example ...


4
Koji Ouchi, Shinobu Tsurumaru, Tadashi Kajiwara, Kenichiro Kumamoto: Super high frequency receiver. Sony Corporation, Lewis H Eslinger, Alvin Sinderbrand, May 27, 1986: US04592093 (60 worldwide citation)

Apparatus for receiving super high frequency signals having an outdoor unit which includes a converter for converting super high frequency signals received by an antenna to ultra high frequency signals, a local oscillator for generating a local signal supplied to the converter a switch for switching ...


5
David E Dodds, Ludo Bertsch: Dataset powered by control and data signals from data terminal. Develcon Electronics, Adrian D Battison, Stanley G Ade, June 30, 1987: US04677646 (35 worldwide citation)

A dataset apparatus is powered by voltages extracted from electrical signals passing between the data terminal apparatus and the dataset by circuits comprising a capacitor and diode combination. The transmitter of the dataset includes capacitance isolation of the signal from the transmission lines b ...


6
Edward T Ball: Power regulator for use with line signal repeaters which are remotely powered. GTE Lenkurt Electric, Leonard R Cool, December 23, 1980: US04241243 (29 worldwide citation)

Operating power for line signal repeaters is fed over a transmission cable pair (signal line) which is susceptible to lightning strikes and, thus, to longitudinally induced currents in the DC power feed circuit. A symmetrical non-linear power regulator is connected between the signal line and the li ...


7
George T Hawley: Apparatus and method for monitoring power loss in a telecommunications system. DSC Communications Corporation, Baker & Botts, June 4, 1996: US05523868 (22 worldwide citation)

A method and apparatus are provided for monitoring power loss in a telecommunications system. Power is received from a permanent power source. A loss of power from the permanent power source is detected. Responsive to the detection of loss of power, a message indicative of a power failure is transmi ...


8
David E Dodds, Ludo A Bertsch: Dataset powered by control and data signals from data terminal. Develcon Electronics, Stanley G Ade, August 6, 1985: US04534039 (20 worldwide citation)

A dataset apparatus is powered by voltages extracted from electrical signals passing between the data terminal apparatus and the dataset by circuits comprising a capacitor and diode combination. The transmitter of the dataset includes capacitance isolation of the signal from the transmission lines b ...


9
Junichi Somei: Switching circuit for a satellite broadcasting converter capable of assuring a high sensitivity. Sharp Kabushiki Kaisha, July 15, 1997: US05649311 (11 worldwide citation)

There is provided a switching circuit of a BS converter capable of assuring a high sensitivity. A BS tuner superimposes a band switching pulse signal on a power voltage when selecting a high band, and supplies the resulting signal to a BS converter. The BS converter amplifies a pulse signal selected ...


10
Yves Le Grand, Rene Migeon: Remote power supply system for equipment on a transmission line. Compagnie Industrielle des Telecommunications Cit Alcatel, Sughrue Mion Zinn Macpeak & Seas, November 2, 1982: US04357545 (10 worldwide citation)

The present invention is concerned with maintaining the power supply to equipments along at least a section of a transmission line in the event of said line being cut. Each equipment (5) along the line (1) is provided with a local power supply circuit (6,7,9) inserted in the remote power supply loop ...