Matches 1 - 50 out of 81 1 2 >
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7373579 ARQ for point to point links  
An automatic retransmission system offering good latency and overhead characteristics combined with programmable tradeoffs among overhead, latency, and error performance. ARQ (Automatic Repeat...
EP1261980B1 EMERGENCY SHUTDOWN KEY  
Abstract not available for EP1261980 Abstract of corresponding document: WO0169618 The invention relates to an emergency shutdown key which comprises an actuating head (2) and a key guiding device...
7170870 Data packet transmission for channel-sharing collocated wireless devices  
Interference between collocated wireless devices sharing the same RF channel is avoided or minimized by a new header format provided for the first data packet in an RF transmission. By inclusion of...
EP0902593B1 Video coder, decoder and transmission system  
Abstract of EP0902593 A coder according to the present invention receives from a decoder the reception result of coded data, estimates the reception capability of the decoder and, based on the...
7055034 Method and apparatus for robust embedded data  
This invention describes a method and apparatus for the increasing the robustness of embedded data. Since many times embedded data is susceptible to removal by an unauthorized person, one preferred...
7043199 Uplink power control system for satellite communication system employing on-board satellite processing and fade estimation  
An uplink power control system for terminals in a satellite communication system provides closed loop power control using feedback signals generated at a satellite. The satellite performs...
EP1097546B1 DATA LINK LAYER EXTENSIONS TO A HIGH LATENCY WIRELESS MAC PROTOCOL  
Abstract not available for EP1097546 Abstract of corresponding document: WO0004677 A method is provided for communication between a plurality of stations in a communication network using media...
EP0863522B1 Emergency switching device, in particular for load-handling trucks, to interrupt the connection between a motor or its control unit and the batteries  
Abstract of EP0863522 The emergency power isolating switch has a connection to a battery and a connection (12) to the drive motor. A housing is provided (5) with a battery connection having...
6941150 Communication system having bad frame indicator means for resynchronization purposes  
A communication system ( 1 ) comprises a transmitter ( 2 ), a receiver ( 3 ), and an up/down link communication channel ( 4, 6 ) arranged for data communication from the transmitter ( 2 ) through...
6920598 System and method for error recovery using NAKs  
In a system of communication, a sending node sends a message to a receiving node, which NAKs unsuccessful transmissions. The sending node screens the NAKs to determine if they were sent before the...
6909718 Transmission-reception apparatus and method for performing error control  
A transmission-reception apparatus does not configure ARQ control information from only sequence number, but the transmission-reception apparatus configures the ARQ control information such that...
6865233 Method and system for control signalling enabling flexible link adaptation in a radiocommunication system  
Control signalling for systems employing link adaptation and incremental redundancy is described. A link adaptation/incremental redundancy message can be transmitted from a receiving entity to a...
6829670 Using consecutive block IDs to keep track of data transferred across a serially linked bridge  
A PCI-PCI bridge is composed of two physically different controllers, i.e., a primary PCI serial transfer controller arranged at a PC, and a secondary PCI serial transfer controller arranged at a...
EP1261163B1 System and method for error recovery using negative acknowledgements (NACK)  
Abstract of EP1261163 In a system of communication, a sending node sends a message to a receiving node, which NAKs unsuccessful transmissions. The sending node screens the NAKs to determine if...
6772158 Apparatus for data depoting and method therefor  
An apparatus and method by which repeaters are able to temporarily or permanently store data in a local repository called a depot. Two uses for the depots are checkpoint restart functionality and...
6611521 Data link layer extensions to a high latency wireless MAC protocol  
The invention provides a method for communication between a plurality of stations in a communication network using media access protocol, in which medium access is granted to stations obtaining a...
6594791 Signalling method in an incremental redundancy communication system whereby data blocks can be combined  
A method of signaling which data blocks can be combined together in an incremental redundancy communication system includes a transmitter device and a receiver device. The method includes...
6580713 Radio communication apparatus and mobile radio communication system  
A mobile radio communication system for communicating between a base station and a mobile station by means of frames, each frame including a header and data. The mobile station includes a...
6556593 Digital cross connect and add/drop multiplexing device for SDH or SONET signals  
In a communication network for transferring signals, e.g. according to the SONET or SDH standards, interconnecting node devices are provided consisting of parallel processing modules ( 9 -T, 9...
EP0763944B1 Video coder, decoder and transmission method  
Abstract of EP0763944 A transmission system transmits a series of coded frames from a transmitting device to a receiving device, using both intra-frame coding and inter-frame coding. The receiving...
EP1261163A2 System and method for error recovery using negative acknowledgements (NACK)  
In a system of communication, a sending node sends a message to a receiving node, which NAKs unsuccessful transmissions. The sending node screens the NAKs to determine if they were sent before the...
6487316 Picture decoder for a picture transmission system  
A transmission system transmits a series of coded frames from a transmitting device to a receiving device, using both intra-frame coding and inter-frame coding. The receiving device decodes the...
EP0792081B1 A system and method for an efficient ATM adapter/device driver interface  
Abstract of EP0792081 The system includes an adapter processor and control memory device included in the adapter. A device is provided for establishing transmit and receive control registers in...
6430172 Radio communication system, transmitting apparatus, radio communication control apparatus, receiving apparatus, and radio communication method  
A radio communication system where data is transferred by TDMA in one frame. A frame is formed of a control-data transfer time region and an information-data transfer time region. In the...
6427152 System and method for providing property histories of objects and collections for determining device capacity based thereon  
A system and method for managing storage resources in a computer system. The invention periodically tracks and stores the history of each object stored in the storage resources. For each storage...
EP1220486A2 A scheme for retransmission of lost packet in fading channels  
The invention concerns one kind of schemes used to retransmit lost packet in fading channel. It is one kind of retransmission schemes, which is multiple copies plus delay, i.e. after the...
6370366 Telephony device comprising a base station and at least a subscriber unit, subscriber unit for such a telephony device and method used in such a telephony device  
A communication device communicates with a station and includes a receiver which receives speech signal frames from the station. The speech signal frames have speech signals. The communication...
6367045 Bandwidth efficient acknowledgment/negative acknowledgment in a communication system using automatic repeat request (ARQ)  
A method and technique are provided for efficiently acknowledging transmitted information in a system that employs variable rate data transmission, and skips data block sequence numbers depending...
6339796 System for logical connection resynchronization  
A technique is provided for resynchronizing message traffic in a communication network following network component failure. A failing component, upon restart, retrieves stored control information...
6282240 Picture coder, picture decoder, and transmission system  
A coder receives from a decoder the reception result of coded data, estimates the reception capability of the decoder and, based on the estimate result, updates accordingly the reference data on...
EP1071239A1 Automatic repeat request protocol for radio data communications  
The secure transfer of information between two stations (1,2) across a network (3) has digital words transmitted in a frame. The digital word receiver station has a valid (12) or non valid frame...
6169821 Picture coder, picture decoder, and picture transmission system  
A transmission system transmits a series of coded frames from a transmitting device to a receiving device, using both intra-frame coding and inter-frame coding. The receiving device decodes the...
6134378 Video signal processing device that facilitates editing by producing control information from detected video signal information  
In the video signal processing device which records video signal (D60) as the material by the predetermined recording reproducing means (64) and conducts the desired editing processing upon reading...
6049570 Picture coder  
A picture coder decodes P frames without having to wait for the next I frame even if a data loss occurs, and ensures quick recovery from degraded picture quality. The picture coder, which controls...
EP0902593A1 Video coder, decoder and transmission system  
A coder according to the present invention receives from a decoder the reception result of coded data, estimates the reception capability of the decoder and, based on the estimate result, updates...
EP0863522A2 Emergency switching device, in particular for load-handling trucks, to interrupt the connection between a motor or its control unit and the batteries  
The emergency power isolating switch has a connection to a battery and a connection (12) to the drive motor. A housing is provided (5) with a battery connection having integrated plug-in part (13)...
EP0851685A2 Video coder, decoder and transmission system  
A picture coder decodes P frames without having to wait for the next I frame even if a data loss occurs, and ensures quick recovery from degraded picture quality. The picture coder, which controls...
5699366 Data communication apparatus having an error correction mode  
A data communication apparatus, having an error correction mode, for receiving data in units of predetermined data frames, and for, upon reception of an error frame, starting a procedure signal...
5694404 Error-correcting virtual receiving buffer apparatus  
An error-correcting virtual receiving buffer apparatus comprises a buffer, a decoder and a buffer controller. The buffer is coupled to the decoder for temporarily containing encoded data incoming...
5682148 Paging system with message numbering prior to transmission  
A paging system repeatedly broadcast each message and associates a sequential message number with each paging message. The message number in each message serves two functions. First, the message...
EP0792081A2 A system and method for an efficient ATM adapter/device driver interface  
The system includes an adapter processor and control memory device included in the adapter. A device is provided for establishing transmit and receive control registers in the control memory. A...
EP0779716A2 A system and method for a scalable and reliable transmission of electronic software distribution  
A system and method which delivers data at very high data transmission speeds to many locations simultaneously. A SCANS system is supplied with a satellite uplink communication module which...
EP0763944A2 Video coder, decoder and transmission system  
A transmission system transmits a series of coded frames from a transmitting device to a receiving device, using both intra-frame coding and inter-frame coding. The receiving device decodes the...
5604487 Apparatus and method for user-selective data communication with verification  
Apparatus and method for communication of data from a holder to a customer or other requester of such data. The requester identifies to the holder a specific data product or other piece of data...
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...
5528284 Video communication method having refresh function of coding sequence and terminal devices thereof  
In a video communication system including a sending terminal and a receiving terminal connected via a packet switching network, a receiving terminal which has detected loss of a video packet sets a...
5502733 Data transfer device  
There are provided a data transmitter for sequentially transmitting data to which error correcting codes are added, and a data receiver for returning a retransmission request signal if the received...
5499046 CATV distribution system with each channel having its own remote scheduler  
A cable television (CATV) system including a plurality of headends, each headend outputting different video/audio programs to subscribers by way of a plurality of channels. The playlist or...
5477550 Method for communicating data using a modified SR-ARQ protocol  
Within a transmitter (101), a quantity of data (201) to be transmitted is parsed into variable length, uniquely identified messages (202), which are in turn parsed into fixed-length, uniquely...
5444718 Retransmission protocol for wireless communications  
The throughput of a radio transmission link is enhanced by arranging a transmitter of data packets so that it responds to the transmission window closing by repeatedly retransmitting all...
Matches 1 - 50 out of 81 1 2 >