1
Kees Schouhamer Immink
Kornelis A Schouhamer Immink, Ronaldus M Aarts, Willem G Opheij: Method of recording a digital information signal on a record carrier having a radiation-sensitive information layer, apparatus for carrying out the method, and optical record carrier provided with such a digital information signal. U S Philips Corporation, Robert T Mayer, Algy Tamoshunas, September 25, 1984: US04473829 (16 worldwide citation)

A method of recording a binary information signal on a record carrier having a radiation-sensitive information layer. The information signal is encoded in such a way that at least n (n.gtoreq.2) consecutive bit cells are of the same type. This information is recorded as pattern of unitary recording ...


2
Kees Schouhamer Immink
Kornelis A Schouhamer Immink, Ronaldus M Aarts: Dropout circuit arrangement for converting an information signal into a rectangular signal. U S Philips Corporation, Robert T Mayer, Algy Tamoshunas, February 12, 1985: US04499570 (13 worldwide citation)

For the conversion of a signal read from a record carrier into a rectangular signal, a threshold-value circuit is used, whose threshold value is determined by a reference signal. The reference signal is derived from a d.c. component in the converted signal. During a dropout in the signal being read, ...


3
Werner Schmidt: Method and apparatus for handing-over a radio connection from one radio cell to another radio cell of a digital radio transmission system. U S Philips Corporation, Thomas A Briody, Algy Tamoshunas, William J Streeter, August 23, 1988: US04765753 (237 worldwide citation)

Base radio stations are spatially arranged in a radio transmission system in accordance with a cellular system, separating the message transmission channels from adjacent base stations being effected either by using the frequency-division multiplex method or by using the code-division multiplex meth ...


4
Bjorn Bluthgen: Method of transmitting audio information and additional information in digital form. Polygram International Holding, Algy Tamoshunas, Marianne R Rich, June 7, 1988: US04750173 (199 worldwide citation)

The invention relates to a method of transmitting audio information in digital form, in which for the transmission of additional information in digital form data bits of said additional information replace one or a plurality of least significant bits in every n.sup.th code word of the audio informat ...


5
Peter L Holster, Johannes M Wittkamper: Multilayer information disc. U S Philips Corporation, Thomas A Briody, Robert T Mayer, Algy Tamoshunas, May 22, 1984: US04450553 (178 worldwide citation)

The invention relates to a multilayer information disc, in particular a video disc, which is read by laser light. The disc comprises at least two radiation-reflecting optical structures each having a relief-like information track of regions situated alternately at a higher and a lower level which is ...


6
Alfons Eizenhofer: Digital radio transmission system with a connection-accompanying organization channel in the time-division multiplex frame. U S Philips Corporation, Thomas A Briody, Algy Tamoshunas, William J Streeter, June 28, 1988: US04754453 (121 worldwide citation)

Method of digital radio transmission between a base station and a plurality of mobile stations. A time division multiplexed signal frame is generated, including a plurality of time slots which repeat each frame interval. A beginning number of the time slots form a signalling channel with the remaini ...


7
Robin B Rumbolt, William R McIntyre Jr: Universal remote control unit. NAP Consumer Electronics, Thomas A Briody, Algy Tamoshunas, Marianne R Rich, September 27, 1988: US04774511 (117 worldwide citation)

The remote control unit has a selection mechanism for selecting any one of a number of categories of equipment to be controlled. The commands available for keyboard input in any given category are automatically displayed to the user upon selection of the category. Switches are provided for user sele ...


8
Jacques C Thillays, Andre Talpied: Matrix of light-emitting elements and method of manufacturing same. U S Philips Corporation, Algy Tamoshunas, Brian J Wieghaus, May 3, 1988: US04742432 (113 worldwide citation)

An electrically insulating substrate has an array of holes formed in it for accepting electrically conducting support pins, each pin having a light-emitting element mounted on the upper pin end. Each upper pin end is surrounded by an insulating ring and a conducting ring, the light emitting element ...


9
Paulus C M Van Der Zande, Petrus C J Hoeven: Method of and apparatus for recording an information signal. U S Philips Corporation, Algy Tamoshunas, Marianne R Rich, February 13, 1990: US04901300 (113 worldwide citation)

A method of and apparatus (FIG. 4) for recording an information signal (Vi), in particular an EFM-modulated signal, are revealed, which information signal comprises time-code signals which alternate with first time-synchronization signals. The record carrier (1) which is employed is provided with a ...


10
Wilhelm J Kleuters, Gerrit B Gerritsen, Johannes J Verboom: Method, apparatus and record carrier body for optically writing information. U S Philips Corporation, Thomas A Briody, Robert T Mayer, Algy Tamoshunas, December 7, 1982: US04363116 (97 worldwide citation)

Disclosed is a method and apparatus for recording information on a disc-shaped record carrier body with a single beam of radiation. The record carrier body is provided with a servo track which preferably exhibits a phase structure and which contains a multitude of sector addresses each associated wi ...



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