1
Michael F Jeffers, Jacob Shekel, Charles L Dages, Joseph Glaab: System arrangement for distribution and use of video games. Jerrold Electronics Corporation, Hopgood Calimafde Kalil Blaustein & Lieberman, January 27, 1981: US04247106 (198 worldwide citation)

An improved system arrangement for distributing and permitting use of an ensemble of program controlled television games includes head end apparatus for impressing an array of game-regulating programs onto an electronic distribution system, e.g., by time division multiplexing into an assigned freque ...


2
Andrew Wayne Barnhart: Bilateral communications system for distributing commerical and premium video signaling on an accountable basis. Jerrold Electronics Corporation, John M Calimafde, January 20, 1976: US03934079 (149 worldwide citation)

A bilateral communications system, as for CATV application, distributes commercially available and premium video programming on a subscriber demand--directly accountable basis. At least the premium video programming is impressed on the cable in a frequency band and/or format not recoverable by a sta ...


3
Joseph B Glaab, Michael F Jeffers: Television signal switching apparatus. Jerrold Electronics Corporation, Stephen B Judlowe, January 19, 1982: US04312016 (97 worldwide citation)

Switching apparatus for selectively applying either video game signals or conventional television program signals to a television receiver includes a pair of complementary filters to respectively pass and block the transmission of signals within a selected game-display channel. A switch may be selec ...


4
Kenneth Simons: Video encription system. Jerrold Electronics Corporation, John M Calimafde, Stephen B Judlowe, September 21, 1976: US03982062 (37 worldwide citation)

Encription apparatus for restricting distribution of private (e.g., premium) video programs propagated by a CATV cable network, radiation or the like employs picture carrier isolating, phase shifting and linear combining structure for rendering the transmitted video information unrecoverable by conv ...


5
Jeffers Michael F: Maximum channel utilization using single ended amplifiers in a frequency band greater than one octave. Jerrold Electronics Corporation, May 23, 1972: US3665316 (31 worldwide citation)

A CATV system is disclosed in which the channels are assigned so that all second order distortion components fall within a sideband in a TV channel, such that the resulting interference is not perceptible to the eye. The channel assignment is selected by utilizing odd multiples of the sideband frequ ...


6
Rogers Donald H: Power supply with temperature compensated current foldback. Jerrold Electronics Corporation, March 27, 1973: US3723774 (22 worldwide citation)

A power supply with overload current foldback employs series regulating feedback circuitry for normally controlling the base potential of a series pass transistor. A current limiting transistor selectively connects the pass transistor base and power supply output terminals for reducing pass transist ...


7
Duty George Otto: Electronic amplifier with dual automatic slope control. Jerrold Electronics Corporation, December 25, 1973: US3781703 (19 worldwide citation)

An amplifier is characterized by electronically variable slopes ('tilt') at the bounds of its signal amplification gain-frequency passband characteristic. Separate feedback circuitry is responsive to an associated one of two frequency-spaced pilot signals for suitably adjusting the response properti ...


8
Everhart Norman, Herman James, Meise William: Catv primary and auxiliary power distribution apparatus. Jerrold Electronics Corporation, Calimafde John M, January 14, 1975: US3860748 (17 worldwide citation)

A power distribution arrangement for CATV or like applications includes power supply apparatus for quiescently supplying line amplifier powering 60 Hz line potential to system cabling. Standby batteries, an inverter, and power loss sensing switching apparatus is provided to automatically supply ener ...


9
Marron Henry B: Duplex cable communications network employing automatic gain control utilizing a band limited noise agc pilot. Jerrold Electronics Corporation, Calimafde John M, Judlowe Stephen B, September 10, 1974: US3835393 (16 worldwide citation)

A full duplex private communications network provides independent automatic gain control circuitry for the oppositely-propagating signals. Band limited white noise is used to effect automatic gain control for information converging in the distribution network towards common head end equipment. Autom ...


10
Shekel Jacob: R. f. impedance bridge for measuring reflection coefficient. Jerrold Electronics Corporation, Sandoe Hopgood & Calimafde, March 26, 1974: US3800218 (16 worldwide citation)

A bridge for measuring the reflection coefficient of a two-terminal load, in which the insertion loss between an input port and an output port is proportional to the reflection coefficient of the load connected to a third port, and the constant of proportionality is substantially independent of freq ...