Scientific-atlanta, Inc.

Lanier Business Products, Inc.

Scientific-altanta, Inc.

Julius B Bagley

Kinney Chapman Bacon

Robert O Banker

Theodore Titus, Iv

Anthony John Wasilewski

James O Farmer

Michael T Hayashi

Michael P Harney

Fred C Bolick, Jr

Alex M Cook, Jr

James E Raiser

Apparatus for providing a user friendly interface to a subscription television terminal comprises a key pad arranged into a plurality of key groupings and an on-screen display controller for generating a plurality of screens for display on an associated television receiver. Five such key groupings are segregated from one another and comprise function keys, initialization keys, channel keys, audio keys and digit keys. The digit keys may be most conveniently arranged in a two dimensional matrix corresponding to a key pad of a conventional tone dialing telephone. Each of the other key groupings may be arranged linearly and differentiated by the use of color or boxes. A method of initializing the cable television terminal comprises the steps of generating a display of a menu structure, actuating the movement of a cursor in one direction through choices presented by a menu by use of a cursor key, and actuating a selection of a menu choice via actuation of a select key. For example, a sleep timer may be implemented in a subscription television terminal for turning off power to an associated television set after a predetermined period of time. Parental control of received channels can be established such that only those having knowledge of a particular code may view the parentally controlled channel. Other features of a terminal in accorance with the invention include messaging, establishing a favorite channel list, pay-per-view, program timing, and terminal control.

Method and apparatus for providing an on-screen user interface for a

A system and method for multiplexing a plurality of digital programs for transmission to a plurality of remote locations is claimed. An encoder is provided that first generates a plurality of subframe data streams each comprising a continuous sequence of subframes. Each subframe in each subframe data stream comprises at least a transport layer region and a program data region. For each subframe data stream, portions of the program data region of each of the subframes in that subframe data stream are allocated to selected ones of the plurality of programs. Mapping information is provided in the transport layer region of each subframe for use by a decoder in extracting a selected program from each subframe. A multiplex data stream is then generated at the encoder that comprises a continuous sequence of superframes. Each superframe comprises a superframe transport layer region and a subframe data region. A portion of the subframe data region of each superframe is allocated to at least one subframe from each of the plurality of subframe data streams. A superframe map is then generated and transmitted with each superframe that specifies at least the location of each subframe within the superframe. The multiplex data stream is then transmitted to the plurality of remote locations. According to one embodiment, at an intermediate location, subframe data streams may be extracted from one multiplex data stream for re-routing within other multiplex data streams.

System and method for multiplexing a plurality of digital program

A television system having sync suppression scrambling and descrambling which includes in band and out of band signaling methods. The in band signaling method modulates the IF sound carrier of a premium video channel with timing and data pulses while the out of band signaling method modulates the previously modulated IF sound on a separate carrier onto a separate out of band data carrier. The in band signaling method uses a descrambler which tunes a channel before demodulating the timing and data pulses from the sound carrier while the out of band signaling method tunes a selected data carrier to demodulate the timing and data pulses. In both methods, the timing pulses are used to restore the levels of the synchronization pulses in the sync suppressed video signal, and thus descramble the signal, while the data pulses are used for addressable messaging to the descrambler including authorization. The out of band descrambler provides broadband sync restoration for a particular channel and thus does not need a broadband tuner for the video signal.

System for broadband descrambling of sync suppressed television signals

A subscriber terminal apparatus for a television in an in-band subscription television system is provided. The subscriber terminal includes a receiver for receiving a television signal including video, audio, ana data information. A selector selects a channel of the television signal. A memory stores a plurality of barker screens providing messages regarding one or more channels of the television signal. An on-screen display control circuit controls the display of the barker screens on the television. A processor retrieving a barker screen from the memory supplies the retrieved screen to the on-screen display control circuit if the barker screen provides a message regarding a selected channel. Barker screen information may also be obtained from a dedicated data channel or a six megahertz video barker channel.

Method and apparatus for providing message information to subscribers in

A subscriber terminal includes a receiver for receiving a television signal including video, audio, and data information. A channel of the television signal may be selected for display on the television. A memory stores channel identification information such as channel identifiers. The channel identifiers include at least one display character. A processor establishes a relationship between channel identification information and channel numbers associated with channels of the television signal. An on-screen display control circuit controls the display of character information on the television and has the capability of overlaying the channel number and the channel identification information on the video portion of a selected channel displayed on the television for a predetermined period of time. Program identification information such as program titles may also be displayed. Alternatively or additionally, the channel identification information may be displayed on a display such an LED display of a subscriber terminal.

Method and apparatus for displaying channel identification information

A subscriber terminal apparatus for a television in an in-band subscription television system is provided. The subscriber terminal is adapted to receive a television signal including video, audio, and data information. A tuner of the subscriber terminal tunes channels of the television signal and an on-screen display control circuit selectively provides a display of characters on the television. A tuner control tunes the tuner to a channel having in-band data when the display of characters is provided on the television.

Method and apparatus for tuning data channels in a subscription

A display device for use in a dictation transcription station comprising a plurality of selectively actuatable lighted segments (10). A pair of shift registers (25, 26) are used to retain information as to the location of recorded signals denoting ends of dictation segments and location of instructions. As rewound tape is transcribed a third shift register (27) creates a shutter comprising contiguous lighted segments which moves to the right during a transcription operation. Control circuitry (67, 62) allow shifting of the registers containing the end of segment and instruction marks to occur only when the tape is rewound past the farthest point reached during a previous rewinding operation. A display for a dictation recorder is also shown wherein a pair of up down counters (130, 145) control numerical displays representing the total length of tape used (20) and the length of the present dictation segment (21). Apparatus which is sensitive to rewinding of the tape into a previous dictation segment (165, 28) is used to control the present segment counter. The present segment counter may be selectively made (169, 177, 150) to begin counting again upon either entry into the next dictation segment encountered during forward advance or the segment in which dictation was occuring when the rewound operation was initiated.

Dictation display device

A display for a record playback apparatus where the record medium includes end and instruction indicia signals recorded thereon, of which the end signals delimit segments of dictation on the medium, including displays for the time remaining in the present segment (15), the number of segments yet to be reached going in the forward direction (11), the number of instruction indicia signals within the present segment (12) and the playback time remaining until the next instruction signal is reached (16). A counter (31) counts the end signals and also provides an address to an addressable memory (30) in which the number of instruction signals counted by a second counter (29) is stored. During movement of the record medium in a forward direction, the number stored in the addressable memory (30) are loaded back into the counter (29). The time remaining until next indicia signal segments are controlled by up/down counters (66, 67) which count pulses (60) corresponding to movement of increments of the record medium past a transducer. The contents of the counters (66, 67) are written into and read out of addressable memories (68, 69) during movement of the record medium. Also shown is apparatus which latches (166) an advance signal (170) which will fast wind the record medium in a particular direction until it is within a predetermined distance of the next indicia signal as detected by a comparator (160). Also shown is a counter (172) which may be preset (23) to skip a particular number of the indicia signals until the advance signal (170) is removed.

Digital display for dictation transcriber for indicating remaining tape

A display device for use in a dictation transcription station comprising a plurality of selectively actuatable lighted segments (10). A pair of shift registers (25, 26) are used to retain information as to the location of recorded signals denoting ends of dictation segments and location of instructions. As rewound tape is transcribed a third shift register (27) creates a shutter comprising contiguous lighted segments which moves to the right during a transcription operation. Control circuitry (67, 62) allow shifting of the registers containing the end of segment and instruction marks to occur only when the tape is rewound past the farthest point reached during a previous rewinding operation. A display for a dictation recorder is also shown wherein a pair of up down counters (130, 145) control numerical displays representing the total length of tape used (20) and the length of the present dictation segment (21). Apparatus which is sensitive to rewinding of the tape into a previous dictation segment (165, 28) is used to control the present segment counter. The present segment counter may be selectively made (169, 177, 150 ) to begin counting again upon either entry into the next dictation segment encountered during forward advance or the segment in which dictation was occurring when the rewound operation was initiated.

A system for recording or transcribing dictation including means for selectively placing any one of a plurality of recording media, such as tape cassettes, in a position for recording or transcribing dictation on the media, a means for displaying parameters of the dictation recorded on the particular medium in the recording or transcribing position, a means for storing the parameters of dictation on said medium when it is removed from the recording or transcribing position, and a means for again displaying the stored parameters when said medium is returned to the recording or transcribing position. Disclosed embodiments of the storage and display means include a mechanical means, an electrical means utilizing a separate memory for each recording medium, and an electrical means utilizing an addressable memory having particular memory locations for each recording medium.

Growing community of inventors

Marietta, GA, United States of America

Julius B Bagley