1
Charles Schepers, Wolfgang Schroder: Consumer electronics equipment combination consisting of a television receiver and of a video recording and/or reproducing apparatus. International Standard Electric Corporation, Donald J Lenkszus, November 4, 1986: US04621259 (248 worldwide citation)

In order to be able to use the combination of a commercially available type of television receiver (1) with a commercially available type of video tape recorder (3) or video disk recorder, additionally also as a home computer, a data and address bus (32) is provided for additionally in the televisio ...


2
Gerhard Gunter Gassmann: Method of and system for transmitting two different messages on a carrier wave over a single transmission channel of predetermined bandwidth. International Standard Electric Corporation, John T O Halloran, Peter C Van Der Sluys, December 9, 1980: US04238849 (188 worldwide citation)

In a radio broadcoast channel, an additional message is superimposed on the normal message so as to be inaudible to the listener. To accomplish this, the additional message, consisting of digital signals, is modulated on a subcarrier lying in the ear-physiological masking range of the normal message ...


3
Richard E Epworth: Optical transmission system. International Standard Electric Corporation, John T O Halloran, Peter R Ruzek, August 6, 1985: US04533247 (145 worldwide citation)

An optical transmission system comprises a light source, which may be coherent or incoherent, a first optical interferometer wherein light from the source is modulated, an optical path, which may be either free space or an optical fiber, along which the modulated output of the first interferometer i ...


4
Barsellotti John Anthony, Laliccia Federico Riccardo, Litster John Fraser: Transponder for meter reading telemetering system. International Standard Electric Corporation, Raden James B, Chaban Marvin M, October 15, 1974: US3842206 (110 worldwide citation)

Disclosed is a system for the sensing of the reading of utility meters, such as gas, electric and water, at a unit connected to a telephone station, and the transmission of sensed data over telephone lines to a receptive data processor. A reed switch senses each rotation of the least significant dig ...


5
Ian A W Vance, John K Goatcher: Direct conversion radio receiver for FM signals. International Standard Electric Corporation, John T O Halloran, Peter R Ruzek, June 4, 1985: US04521892 (109 worldwide citation)

A radio receiver for FM signals having a demodulation system to produce an approximation to an analog output by either measuring the time intervals between successive zero crossings in the I.F. (FIG. 1, FIG. 2B) or by filtering pulses produced at each zero crossing of the I.F. (FIG. 1, FIG. 2A). The ...


6
Ulrich Langewellpott: TDMA spread-spectrum receiver with coherent detection. International Standard Electric Corporation, John T O Halloran, Thomas F Meagher, May 6, 1986: US04587662 (109 worldwide citation)

To utilize indirect-path signals in a receiver for fixed and mobile transmitter-receiver stations of a TDMA spread-spectrum digital radio system, coherent detection is employed. At the same time, the signal imaging the multipath profile is continuously regenerated by a regeneration circuit. The rege ...


7
Gunter Steudel: Sound-in-video television transmission. International Standard Electric Corporation, John T O Halloran, Peter C Van Der Sluys, May 22, 1979: US04156253 (101 worldwide citation)

A sound-in-video signal transmission system is made compatible with present domestic TV receivers by transmitting the color-sync signal in the time domain according to the current standard, and the sound signals are transmitted partly before it and partly after it.


8
Ian A W Vance, Stephen D Bainton: Duplex radio system utilizing time compression expansion. International Standard Electric Corporation, John T O Halloran, Peter R Ruzek, June 25, 1985: US04525835 (95 worldwide citation)

A multichannel duplex radio system for cordless telephone in which digital information is sent between the two ends. The data is divided into blocks which are transmitted in a fraction of the original block length. The other time slots are used for the duplex return path and for other similar equipm ...


9
Richard E Epworth: Optical frequency modulation system. International Standard Electric Corporation, John T O Halloran, Peter R Ruzek, December 24, 1985: US04561119 (86 worldwide citation)

An optical communication system including at a transmitter a semiconductor laser (2) and at a receiver a photodetector (3). Intermediate the transmitter and the receiver is an optical frequency discrimination (4), e.g. a Fabry-Perot resonator. The laser (2) is operated at a substantially constant av ...


10
Martin Chown: Optical fibre terminations and connectors. International Standard Electric Corporation, John T O Halloran, Thomas N Twomey, September 22, 1981: US04290667 (84 worldwide citation)

A termination for an optical fibre is formed with an integral lens for producing an expanded parallel light beam. A pair of terminations provide an optical coupler for connecting between a corresponding pair of optical fibres.



Click the thumbnails below to visualize the patent trend.