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Judson A Hofmann: Method and apparatus for managing multiple outside video service providers. Panasonic Technologies, Ratner & Prestia, March 16, 1999: US05883677 (225 worldwide citation)

A method and apparatus for receiving, organizing and presenting program information to a display device in a home from at least two outside sources such as CATV, telephone companies (TELCOs) and direct broadcast satellite (DBS) is disclosed. A distribution network is established within the home usin ...


2
Judson A Hofmann, Paul A Snopko: Television/telephone system with annunciator and intercom feature. Zenith Radio Corporation, Jack Kail, January 24, 1984: US04427847 (39 worldwide citation)

A television receiver comprises a television system energized by the powerlines of a commercial power grid, a telephone network access system including a microphone disposed in close proximity with the audio speaker of the television system and a remote control system enabling the receiver to be ope ...


3
Judson A Hofmann: Method for automatically independently providing asynchronous brouter address information to remote control units. Panasonic Technologies, Amster Rothstein & Ebenstein, September 15, 1998: US05809076 (23 worldwide citation)

A network configuration communication system and method comprising at least one brouter for automatically broadcasting its address and other network configuration information and at least one remote control device for receiving brouter broadcasts and automatically updating its network configuration ...


4
Judson A Hofmann: Full wave rectifier envelope detector. Zenith Radio Corporation, February 10, 1981: US04250457 (19 worldwide citation)

A detector is described for fully rectifying a low level A.C. input signal without developing switching transients or substantial levels of undesirable signal components. The output of the detector is substantially equal to the square root of the sum of the square of the input signal and the square ...


5
Judson A Hofmann: Dual function coupling system and method. Zenith Radio Corporation, Roy A Ekstrand, April 5, 1977: US04016480 (12 worldwide citation)

An additional signal is supplied to an integrated circuit, including a voltage regulator and a plurality of electronic circuit elements, by impressing the signal on a terminal coupled to the voltage regulator. Circuitry in the integrated circuit recover the signal by detecting the voltage regulator ...


6
Judson A Hofmann: Frequency scanning automatic phase control system. Zenith Radio Corporation, Roy A Ekstrand, September 6, 1977: US04047223 (8 worldwide citation)

A frequency scanning automatic phase control includes a phase detector, a local oscillator and an APC filter. A coincidence detector includes an AND gate responsive to the horizontal retrace and reference synchronizing pulses. A lock detector also responsive to the retrace and reference sync pulses ...


7
Judson A Hofmann: Television synchronizing signal separating circuit. Zenith Radio Corporation, Nicholas A Camasto, Roy A Ekstrand, April 3, 1979: US04148068 (6 worldwide citation)

A television receiver has a tuner, an intermediate frequency amplifier, and a detector for recovering a composite signal including horizontal and vertical display synchronization components and picture information. Horizontal display means produce a long-duration trace signal and short-duration retr ...


8
Judson A Hofmann: Variable speed horizontal automatic phase control. Zenith Radio Corporation, Roy A Ekstrand, September 13, 1977: US04048655 (2 worldwide citation)

A television receiver includes conventional circuitry for receiving processing and detecting an information bearing signal. Vertical scansion means respond to recovered synchronizing information and provide vertical scansion of a conventional cathode ray tube. A horizontal oscillator coupled to an o ...


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