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| Number | Title | Issue Date |
| 5729549 | Simulcasting digital video programs for broadcast and interactive services To provide interactivity, a public wireless packet data network is combined with a broadband digital broadcast network. In the preferred embodiment, the broadcast network utilizes multiple transmitters at separately located sites simultaneously broadcasti... | 03/17/1998 |
| 5689648 | Method and apparatus for publication of information A system and devices for publication of newspapers and the like. The system uses an electronic memory/display unit (24) which preserves the convenience of printed material, but which has the advantages of a computer display. The system utilizes a cable te... | 11/18/1997 |
| 5640673 | Broadcasting satellite communication system with improved answer signal transmission A satellite communication system broadcasts an information signal from a transmitting station to a plurality of receiving stations via a communication satellite. An answer station is provided among a plurality of receiving stations which are located in a ... | 06/17/1997 |
| 5633891 | Portable integrated satellite communications unit A high speed teleconferencing apparatus and method, the apparatus including interface means for receiving a first analog signal and outputting a first digital signal, encoding means for encoding and compressing the first digital signal to produce a first ... | 05/27/1997 |
| 5606611 | Receiving station management apparatus In a transmitting unit, receiving stations are formed into a plurality of groups, and information associated with the right to receive a broadcasting service is rewritten in units of groups by converting the information into a packet (group information) a... | 02/25/1997 |
| 5594490 | System for distributing video/audio files from central location to a plurality of cable headends A system and method for ensuring accurate reception of digitally encoded files that are transmitted in non-real time from a distribution station to a plurality of receiving stations, e.g. cable headends. Each file is divided into a plurality of data packe... | 01/14/1997 |
| 5592470 | Broadband wireless system and network architecture providing broadband/narrowband service with optimal static and dynamic bandwidth/channel allocation A wireless broadband communication system architecture is structured to provide an array of narrowband and broadband services to an end user on demand. The bandwidth of delivery is dynamically adjusted to deliver and satisfy service requirements by utiliz... | 01/07/1997 |
| 5592471 | Mobile radio receivers using time diversity to avoid service outages in multichannel broadcast transmission systems Mobile radio receivers in a broadcasting system having more than one transmission channel sending the same programs use time diversity to prevent service outages during periods when none of the channels can be received.... | 01/07/1997 |
| 5584047 | Methods and apparatus for augmenting satellite broadcast system The present invention comprises methods and apparatus for providing programming from both satellites (11) and local sources (L) using a single receiving antenna (32). In a preferred embodiment, beams (18) emanating from a geosynchronous satellite (11) are... | 12/10/1996 |
| 5534941 | System for dynamic real-time television channel expansion A system is provided by which a single active video signal, along with a plurality of audio and data streams can be made to represent a number of different screens of information at a cable TV set. The system uses essentially only the bandwidth of a singl... | 07/09/1996 |
| 5455823 | Integrated communications terminal An integrated communications terminal including a selectable channel demodulator and decoder, a time-division-multiplexed (TDM) channel demodulator and decoder, a data processor and controller, an audio decompressor, a D/A converter, and a data coder and ... | 10/03/1995 |
| 5392066 | In-store advertising system An in-store advertising system for displaying advertisements involves preparing graphical art from the actual products or from flat art, for each advertised product. Each frame is stored in computer memory as a digital graphics file. As desired, pricing a... | 02/21/1995 |
| 5345594 | Information transmission system retransmitting information signals according to retransmission schedule An information transmission system in which an information signal supplied from a base station is automatically edited at relay stations and retransmitted to terminal stations according to a retransmission schedule assigned to each relay station. The tran... | 09/06/1994 |
| 5283639 | Multiple media delivery network method and apparatus A multiple media system having a central site and a remote site for customizing video and audio presentations comprising a communications channel, a studio processor, a scheduling processor, a network processor, a transmitter, a communications processor, ... | 02/01/1994 |
| 5270809 | Data return for a television transmission system A method for transmitting information over a communication network between a population of remote terminals and a central location having a capacity of simultaneously communicating with a predetermined number of remote terminals in the population. A first... | 12/14/1993 |
| 5247348 | Method for selecting reproduction quality of transmitted vector quantized data A method of communicating data from a first location to a second location employing a vector quantization data compression technique that allows users to select the reproduction quality of the transmitted vector quantized data. According to the method, da... | 09/21/1993 |
| 5216515 | Addressable video feed system A novel cable interconnect system provides for the overnight delivery of advertising messages to optical disc libraries located at cable headends and for the automated and customized insertion of ads on a plurality of cable systems throughout a wide geogr... | 06/01/1993 |
| 5073930 | Method and system for receiving and distributing satellite transmitted television signals A television distribution system includes a frequency agile satellite transponder down converter operating in the satellite block converted frequency range, typically 950-1450 MHz, along with an IF stage incorporating bandpass filtering and a frquency agi... | 12/17/1991 |
| 5036389 | Satellite controlled audience polling system A satellite controlled TV audience response system provides means for current processing of answers to audience polls so that answers may be presented in TV pictures alongside the questions substantially instantaneously. This system has the capacity to pr... | 07/30/1991 |
| 4945410 | Satellite communications system for medical related images A satellite communications system for transmitting medical related images from one or more remote satellite locations to a central headquarters and then sending back diagnostic analysis from the central headquaters to the one or more remote satellite loca... | 07/31/1990 |
| 4864614 | Authorising coded signals In a transmission system authorization codes are transmitted to authorize subscribers to receive scrambled signals in an intelligible manner, such a system being a television transmission system. If each subscriber were assigned a unique authorization cod... | 09/05/1989 |
| 4819272 | Intermittently driven transmitter An intermittently driven transmitter having high power output which is driven intermittently so as to transmit a signal via, for example, a satellite in which the voltage supplied to the transmitter is boosted and supplied to a capacitor. When the signal ... | 04/04/1989 |
| 4802008 | Satellite communications system for medical related images A satellite communications system for transmitting medical related images from a mobile unit to a central headquarters and then sending back diagnostic analysis from the central headquarters to the mobile unit by having a high resolution camera and a vide... | 01/31/1989 |
| 4739510 | Direct broadcast satellite signal transmission system Audio and control signals are digitized and inserted in the horizontal blanking intervals of the distributed composite television signal. The control signals are in the form of a data stream which includes a header containing group address, sync, and prog... | 04/19/1988 |
| 4723320 | Dual communication link for satellite TV receiver A satellite television reception only receiver includes a programmable microprocessor which has a communications link for communicating between a plurality of receivers connected in a multiple receiver installation. An antenna is connected to only one rec... | 02/02/1988 |
| 4720873 | Satellite audio broadcasting system A satellite audio broadcasting system for network programming and broad-based advertising includes a network uplink facility and a plurality of local radio station downlink facilities. The system permits pre-empting of network audio by the local station a... | 01/19/1988 |
| 4545075 | Satellite block transmission using wideband fiber optic links A system for transmitting one or more blocks of information signals from the output of a low noise amplifier associated with a satellite antenna to a remote headend or terminal is disclosed. Block conversion is used to translate the signal spectrum from t... | 10/01/1985 |
| 4513315 | Community antenna television arrangement for the reception and distribution of TV - and digital audio signals Community antenna television arrangement for the reception and distribution of TV signals and digital audio signals, in particular signals which are transmitted per satellite, including a head-end connected to a receiving antenna and a signal distribution... | 04/23/1985 |
