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6680955 |
Technique for compressing a header field in a data packet
A timer based header compression/decompression technique and timer and reference based technique are provided. A source generates a header field, such as an RTP time stamp. A packet including the...
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6678262 |
Method and device for radio transmission
The invention proposes a method and an apparatus for the radio transmission of user data, arranged in data words of a defined length, in time-division multiplex frames having active time slots in...
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6674741 |
High speed data transmission in mobile communication networks
The invention relates to high speed data transmission in digital mobile communication systems. In multichannel data transmission, a single data connection is allocated a plurality of parallel...
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6668168 |
Radio communication system
A radio communication system has means for enabling the control channels associated with a data channel transmitting packet data with a low duty cycle to be switched to a dormant state or...
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6665314 |
Wireless printer adjunct
A method and system for managing the transmission of data having variable priority over a transmission link are disclosed. Higher and lower priority data share a common transmission link such as a...
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6658023 |
Image transmission system
An image transmission system in which when each of a plurality of image signals is transformed into compressed image data compressed at an image compressing portion, the image data are assembled to...
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6636530 |
Digital audio telephony over IP network compression
A system and method for compressing and transferring analog data in a packet-based computer network in which the times for packets to travel to the destination may vary. The analog signal is...
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6631273 |
Method and apparatus for filter selection from a frequency synthesizer data
Modern portable communications units, and in particular cellular telephones, can contain several frequency bands for receiving and several frequency bands for transmitting signals. Typically these...
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6628617 |
Technique for internetworking traffic on connectionless and connection-oriented networks
Traffic on a connectionless (CL) network, such as IP packets, can be routed onto a connection a connection oriented (CO) network, such as an ATM telephony network, when it is advantageous to do so...
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6618591 |
Mechanism to benefit from min and max bitrates
A link between a mobile station operating within a universal mobile telecommunications system (UMTS) is checked either at the mobile station itself or within a Radio Network Controller (RNC) of the...
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6614770 |
Mobile station apparatus and base station apparatus
The base station apparatus compresses one-frame information of a broadcast channel to blocks of ½ of one frame or less and repeatedly sends this block in a one-frame time. The mobile station...
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6611497 |
TS data filtering circuit in digital broadcasting receiver
A TS data filtering circuit in a digital broadcasting receiver comprises storage means for storing, when it cannot be judged whether or not a data row in a TS packet is a data row to be acquired by...
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6611535 |
Method for flow control
A method of efficiently using Transmission Control Protocol (TCP) with Acknowledgments (ACKs) comprising Selective Acknowledgement (SACK) options in asymmetrical networks by reducing the number of...
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6608828 |
Methods and systems for decoding headers that are repeatedly transmitted and received along with data on a radio channel
A header that is repeatedly transmitted and received, along with data, on a radio channel is decoded by initially decoding at least one initially received header to identify values for the header...
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6597674 |
Handover method, base station, mobile station, and mobile communication system
The present invention is directed to a handover method, a base station, and a mobile station for a CDMA mobile communication system, to improve the efficiency of inter-frequency handover. Handover...
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6580753 |
Method of transmitting information via a telecommunication system and corresponding telecommunication system
Method for transmitting information in a radiocommunication system and corresponding radiocommunication system, the method transmitting compressed information between a transmitter and a receiver...
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6574272 |
Method and apparatus for passing interactive data over a modem link with low latency
A method and apparatus for transmission of time critical data over a modem link is disclosed. Time critical data is intercepted by a modem at its host input-output port. The intercepted time...
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6570849 |
TDM-quality voice over packet
A method of transmitting interleaved real-time and non-real-time data on a packet based network so as to provide voice Quality of Service comparable to the Time Division Multiplexing realm of...
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6563793 |
Method and apparatus for providing guaranteed quality/class of service within and across networks using existing reservation protocols and frame formats
A method and apparatus provide reserved bandwidth and QOS/COS virtual circuit connections in a network using both conventional and novel reservation protocols and frame formats. An apparatus...
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6564067 |
Method for setting a transmission quality target value for power control in a mobile radiocommunication system
A method for setting a transmission quality target value for power control in a mobile radiocommunication system, a method wherein: an offset is applied in an anticipated way to said transmission...
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6535526 |
ATM cell compression device and ATM cell recovery device, ATM cell compression recovery device, ATM cell compression recovery system, and ATM cell compression recovery method
An ATM cell compression recovery device includes an ATM cell recovery device having a compressed cell determination unit that determines whether an ATM cell from a transmission line is a compressed...
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6510133 |
Multi-carrier transmission method and data transmitter
Equipped with a plurality of mapping blocks 102 and 103 that carry out mappings of different rates, signals subjected to low-speed mapping are placed in the periphery of a band to which a...
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6507587 |
Method of specifying the amount of bandwidth to reserve for use in network communications
A slot assignment technique for assigning slots to a video communiction source in a slotted communication channel entails, in embodiments, using a slot from the channel to issue a coded request...
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6504849 |
Fiber auto-negotiation
A communication node is configured to automatically select an optimum common operational mode between itself and a link partner. The communication node sends advertisement packets across a fiber...
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6504850 |
Encoded signal transmission method and encoded signal transmission apparatus
In the case where plural encoder outputs are encoded at variable bit rates and are multiplexed to carry out transmission thereof at a fixed or constant bit rate, the output bit rates from...
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6501770 |
Dynamic mapping of broadcast resources
In a data communication system such as a high capacity DBS system, dynamic mapping of broadcast resources is provided to exploit occasional redundancy in the program content of two or more input...
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6498796 |
Method for tandem detection and tandem tunneling
A method and apparatus of detecting a tandem link and performing tandem tunneling when a tandem link is detected. The detection of a tandem link includes generating a HAIL and ACK signal where a...
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6493316 |
Apparatus for and method of managing bandwidth for a packet based connection
Flow control of packet based traffic by window is known. Novel modification is described which causes the flow control mechanism to reduce sending rate to some configured number rather than just...
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6493764 |
Data communications apparatus, method and computer program product implementing data communications protocol with efficient packing of datagrams
A data communications apparatus connected to a network through which datagrams flow from the data communications apparatus to at least one other data communications apparatus also connected to the...
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6487222 |
Quarter-rate 2B1Q ISDN architecture with embedded differential delay compensation for extending range of DDS communications
The transmission distance for DDS subscriber lines over a repeaterless four-wire link is extended to customer premises beyond the standard four-wire loop range of approximately 18 kft (56 kbps, 56...
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6483870 |
Data communication using a modifiable number of XDSL modems
A communication system includes a number of communication devices coupled to a data network using communication servers. The communication system supports communication sessions between a variety...
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6480509 |
Communication system using a compressed connection
In a communication system the quality of transmission is improvied with an arrangment including a first node having compression processor that derives from a plurality of source signals a plurality...
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6470029 |
Bandwidth control method in a network system
A bandwidth control method is disclosed that allows management on the network manager side of bandwidths to be reserved. Between each of subscriber nodes, maximum bandwidths are set for each node...
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6469983 |
Data packet transmission scheduling using a partitioned heap
The present invention is directed toward methods and apparatus for data packet transmission scheduling using a partitioned scheduling heap data structure. The scheduling heap data structure has a...
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6466544 |
GPRS MAC procedures to support real-time services
A system and method for GPRS MAC procedures to support delay-sensitive, real-time traffic is presented. The system comprises a mobile station able to transmit packets to and receive packets from a...
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6445689 |
Device for a radio-communication system, in particular for point-to-multipoint connections
A device for a radio-communication system, in particular for point-to-multipoint connections, includes components for a supplementary transmission of ATM cells and for dynamically assigning the...
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6442175 |
Digital one-link relaying system for communication data in a cell transmission network
When passing-particular-equipment identification data which indicates passing particular transmission equipment has been detected, two opposing CLAD blocks exchange items of information on the...
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6438139 |
Method and apparatus for using a receiver model to multiplex variable-rate bit streams having timing constraints
Techniques for determining an output rate for a bit stream, the output rate being determined by applying information read from the bit stream to a model of a receiver for the bit stream. The...
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6438141 |
Method and management of communications over media of finite bandwidth
The invention provides a method and apparatus for management of communications over media of finite bandwidth. One embodiment of the invention allows management of communications comprising a...
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6434151 |
Communications system and method
In a communications system in which narrow band, e.g. voice, channels are carried in packet form over an asynchronous network, each channel is encoded to reduce its bit rate so as to reduce demands...
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6430161 |
Client-optimized data transmission system and method
Data transmission system and methods in which data is automatically selected based upon, the processing ability of a client and the condition of a data transmission line connecting a server and the...
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6426960 |
Increased capacity data transmission in a CDMA wireless communication system
A method and apparatus for transmitting voice and data in a code division multiple access (CDMA) wireless telecommunications system is described. In an exemplary embodiment of the invention, a base...
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6421356 |
Method and apparatus for bandwidth management in a digital loop carrier system
A method and apparatus are provided for managing bandwidth operative in a digital loop carrier system. The system includes service cards connectable to at least one transport card having a given...
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6404776 |
Data processor having controlled scalable input data source and method thereof
A multimedia communication arrangement processes and multiplexes different types of data, including data from an adaptive data rate data source and a nonadaptive data rate data source, to...
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6351471 |
Brandwidth optimization of video program bearing transport streams
A method and system are provided for remultiplexing program bearing data. The remultiplexing method and system are applicable to MPEG-2 compliant transport streams carrying video programs. A...
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6314095 |
Method and apparatus for a high-speed multimedia content switch with compressed internet protocol header
An IP packet (210) is retrieved having a header and a payload. The header of the IP packet is compressed. The payload is appended to the compressed header to create a compressed IP packet. A...
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6307865 |
Radio communication method and radio communication system between base station and mobile station
The invention provides a radio communication method and a radio communication system which allow data transmission in a wide band regarding a modem modulation signal as a speech signal and allow...
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6289020 |
ATM data controller
To prevent cell-delay-variation of ATM cells to be transmitted and to compress numeral data without increasing CPU load, an ATM data controller for controlling data exchange between a data...
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6285686 |
Using page registers for efficient communication
The inventive mechanism reduces the bandwidth required to transmit an information packet. The inventive mechanism uses page registers that store the bit patterns that are likely to repeat. The...
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6278883 |
Communication protocol for a wireless data system
A wireless data network provides message control center broadcasting over a paging channel covering a wide service area and base stations distributed in said wide service area providing two-way...
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