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7626978 |
Method for diverting an ISUP talkpath to an IP talkpath
A method for improving the sound quality of voice signals transmitted during a call between two digital wireless telephones by diverting the call from a circuit switched network to a data network...
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7619994 |
Adapter for use with a tandem-free conference bridge
A conference bridge adapter for processing data carried on a media path between, on the one hand, a conference bridge operative to communicate composite packets carrying media information and...
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7606267 |
Reducing the sizes of application layer messages in a network element
A method is disclosed for reducing the sizes of application layer messages in a network element such as a network switch or router. According to one aspect, the network element receives data...
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7606363 |
System and method for context switching of a cryptographic engine
A cryptographic system, method, and device for implementing cryptographic functions designed to protect data is provided. The method includes (a) providing an algorithm processing unit, (b)...
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7596488 |
System and method for real-time jitter control and packet-loss concealment in an audio signal
An “adaptive audio playback controller” operates by decoding and reading received packets of an audio signal into a signal buffer. Samples of the decoded audio signal are then played out of the...
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7580429 |
System and methods for improving data compression
An improved data compression system and method is disclosed. The data compression method uses smaller fixed bit words to represent streams of digital data. The fixed bit words are sent instead of...
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7492794 |
Channel estimation method and apparatus for multi-carrier radio transmitting system
A multi-carrier CDMA radio transmitting method replicates each information symbol and disposes thus-obtained information symbols along a frequency axis, multiplies the thus-obtained information...
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7457324 |
Multi-carrier CDMA radio transmitting method and apparatus, and channel estimation method and apparatus for multi-carrier CDMA radio transmitting system
A multi-carrier CDMA radio transmitting method replicates each information symbol and disposes thus-obtained information symbols along a frequency axis, multiplies the thus-obtained information...
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7447263 |
Processing digital data prior to compression
A method includes receiving an original string of bits where each of the bits represents one of two possible logic levels. The string of bits also carries information. A new string is formed, based...
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7426470 |
Energy-based nonuniform time-scale modification of audio signals
A method for energy based, non-uniform time-scale compression of audio signals includes receiving a frame of data corresponding to an input audio signal and segmenting the data into a plurality of...
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7420992 |
Adaptive network traffic compression mechanism including dynamic selection of compression algorithms
An adaptive compression mechanism that dynamically selects compression algorithms applied to network application traffic to improve performance. One implementation includes an arbitration scheme...
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7417943 |
Dynamic compression training method and apparatus
An apparatus for communicating between an access endpoint and a mobile device endpoint comprising a network service center attached to the access endpoint. A memory stores a prototype corpus...
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7415045 |
Method and a system for transferring AMR signaling frames on halfrate channels
The present invention relates to the transference of signaling frames on GERAN (GSM/EDGE radio Access Network) half rate channels utilizing a modulation scheme carrying n bits in one symbol. In...
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7400651 |
Device and method for interpolating frequency components of signal
A frequency interpolation apparatus is provided which reproduces a signal similar to an original signal by approximately recovering suppressed frequency components, from an input signal having the...
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7372871 |
Techniques to reduce information loss and translation costs in a system populated with data sources and sinks communicating with multiple data representations
Techniques for reducing overall information loss and processing costs due to data translation in a network populated with communicating data sources and sinks of multiple data representations is...
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7369559 |
Adaptive call admission control for calls handled over a compressed clear channel
A system that packetizes telephone calls using loss-less codecs for transmission over a communication link. The system includes a call admission control mechanism that admits calls for transmission...
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7362780 |
Avoiding compression of encrypted payload
The invention proposes a method for conveying data packets in a network, comprising the steps of examining (S 1 , S 2 ) whether a received data packet is encrypted, compressing (S 3 ) the data...
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7346127 |
Secure method of deciding on a given state of a communication channel for a transmission system
In a secure method of deciding on a communication channel in a data decompression device, the compressor detects channels that vary from one frame to another, which are referred to as “active”...
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7324557 |
Method, switching devices and remote connection unit for transmitting data having a reduced bandwidth
The invention relates to a method for transmitting data having a reduced bandwidth wherein the amount of data intended for transfer over a data transfer network is reduced by a reduction method,...
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7292609 |
Method and apparatus for CDMA signal reception
The N peaks are selected from a delay profile in order starting from the highest peak involved in the delay profile, the path level and path timing are determined for each of the selected peaks,...
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7280593 |
Method and system for sample and reconstruction synchronization for digital transmission of analog modem signal
A method and system for the synchronization of the transmission of digitally converted analog modem signals between two or more modems using either RF over-the-air or A/C power line communication...
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7245639 |
Compression scheme for IP mobile user
Due to bandwidth constraints on the wireless link in an IP network, it is useful to compress the headers so as to maximize the utilization of the link. There exists Header Compression algorithms...
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7219158 |
Method and system for improving network performance using a performance enhancing proxy
A network apparatus for performing functions to enhance performance of a communication network is provided. The network apparatus includes a spoofing module that is configured to selectively spoof...
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7212517 |
Method and apparatus for jitter and frame erasure correction in packetized voice communication systems
The invention comprises a system and method for correcting jitter and frame erasure in packet voice communication systems with out severely affecting the voice quality of the signal to be easily...
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7154881 |
Method and apparatus for telecommunications using internet protocol
In a wireless packet switching telecommunications network, voice services are provided by having a compressor/decompressor in each mobile station to provide each voice packet with a compressed...
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7154907 |
Method and system for resetting nodes in communication systems
A method and system for resetting nodes in a communication system that include at least a first node and a second node. The establishment for communication settings is initiated between the first...
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7143191 |
Protocol message compression in a wireless communications system
A method, apparatus, system, and computer software for compressing and decompressing a message for transmission. The method of compressing a text message for transmission may include parsing text...
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7130309 |
Communication device with dynamic delay compensation and method for communicating voice over a packet-switched network
A device and method for communication of speech packets over a packet-switched network allows for a greater channel reallocation delay. Initial speech packets may be buffered during a channel...
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7126968 |
Data compression system, data decompression system, supervisory control system and computer-readable storage medium
In a data compression system for compressing an original time series data with a various waveform, a compression unit compresses the original time series data without damaging characteristics of...
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7082142 |
System and method for delivering content in a unicast/multicast manner
The present invention is a system and method for enabling multicast synchronization of initially unicasted content. Multiple unicast streams are synchronized in order to convert the unicast streams...
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7065057 |
Method and apparatus for improving the transmission quality in a packet-oriented data transmission network
A method and apparatus for improving the transmission quality in a packet-oriented data transmission network, wherein time-critical data is transmitted over a packet-oriented data transmission...
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7061936 |
Method and apparatus for packet transmission with header compression
Under the situation in a network including a transmitter and a receiver in which a transmitter converts a non-compressed packet to be transmitted as a full-header packet including a full header or...
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7047436 |
Digital microelectronic circuit with a clocked data-processing unit and a converting unit
A digital microelectronic circuit comprises a clocked data-processing unit ( 1 ) and a converting unit ( 2 ) which reads in data present at the output of the data-processing unit, performs a...
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7035656 |
Method and system for efficient data transmission in wireless communication systems
A network controller for controlling a message over a communication network constantly monitors actually transmitted message from or to a particular user. If the controller determines a particular...
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6973523 |
Code division multiple access modem interface
A modem interface transfers data between a high data rate interface and a wireless interface. The modem interface has a plurality of parallel data highways. Each data highway has frames with time...
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6944163 |
10 Gigabit ethernet mappings for a common LAN/WAN PMD interface with a simple universal physical medium dependent interface
An Ethernet mapping enables high speed Ethernet data streams having a data rate of 10 Gb/s to be transported across a synchronous packet switched network fabric having a standard SONET OC-192 line...
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6920154 |
Architectures for a modularized data optimization engine and methods therefor
A data optimization engine disposed inline with a first communication channel and a second communication channel. The data optimization engine comprises a transmit interface circuit configured to...
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6901077 |
Timeslot interchange circuit supporting PCM, ADPCM, and multiple data channel connectivity to T1 and E1 circuits
A method and apparatus are provided for exchanging information between at least some slots of a first T-carrier and some other non-coincidental slots of a second T-carrier. The method includes the...
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6895438 |
Telecommunication-based time-management system and method
A proxy-server system ( 15 ) connected preferably to a computer-telephone system ( 10 ) intercepts, processes, and analyzes as traffic-analysis results ( 68 A-C) all forms of real- and...
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6845105 |
Method and apparatus for maintaining sequence numbering in header compressed packets
A method and apparatus for maintaining a plurality of sequence numbers in a plurality of header compressed packets associated with an information context is described. Header compressed packets are...
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6839339 |
Header compression for general packet radio service tunneling protocol (GTP)-encapsulated packets
A UMTS (Universal Mobile Telecommunications System) core network supports a compression framework that provides for header compression of General Packet Radio Service Tunneling Protocol...
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6798774 |
Transcoder rate controller
A transcoder rate controller is provided which carries out tandem free operation (TFO) transcoding on inter-switching controller signals in a data transmission network.
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6795497 |
Use of end to end compression devices in telecommunication networks
A method of transmitting signals along a communication path, by a first compression/decompression unit, which method comprises receiving first signals from a first direction along the path,...
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6788675 |
Method and apparatus for telecommunications using internet protocol
In a wireless packet switching telecommunications network, voice services are provided by having a compressor/decompressor in each mobile station to provide each voice packet with a compressed...
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6775270 |
Method for diverting an ISUP talkpath to an IP talkpath
A method for improving the sound quality of voice signals transmitted during a call between two digital wireless telephones by diverting the call from a circuit switched network to a data network...
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6771657 |
Non real-time delivery of MPEG-2 programs via an MPEG-2 transport stream
Digital content is extracted from single and multiple-program transport streams for subsequent non-real-time (background) transmission in a bandwidth-efficient manner. At an encoder, several null...
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6766291 |
Method and apparatus for controlling the transition of an audio signal converter between two operative modes based on a certain characteristic of the audio input signal
The invention relates to a method and apparatus for controlling the transition of a bypass capable codec between operative modes, based on a certain characteristic of the audio data signal...
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6751209 |
Header compression in real time service
A method for transferring a data packet from a compressor to a decompressor said data packet including a header with header data fields. A number of the header data fields that remain constant...
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6680921 |
Estimation of time stamps in real-time packet communications
Techniques are provided for efficiently compressing and reconstructing the time stamp value of a real time communications packet whose time stamp value does not fall within a normally expected...
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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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