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5930685 |
Apparatus and method using fast automatic link establishment waveform for high frequency communications
An automatic link establishment (ALE) method of establishing a link between two or more HF radios or stations, and an apparatus using the same, are disclosed. The invention provides a transmission...
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5926483 |
Method for dynamic allocation of voice and image compression
A communications system providing a means for dynamically controlling system performance during times when communications traffic substantially changes to prevent blocking service while maintaining...
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5926469 |
Channel resource management within a digital mobile communications network
A disconnect time in accordance with the Global System for Mobile (GSM) Phase 1 standard is reduced within a particular base station controller (BSC) serving a particular mobile station. In...
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5923670 |
Multi-port type universal asynchronous receiver/ transmitter system using time division system
A multi-port universal asynchronous receiver/transmitter (UART) system is disclosed having time division multiplexing and demultiplexing. The system has plural UART's and includes a time slot...
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5923665 |
Memory controller for decoding a compressed/encoded video data frame
A multimedia system includes an audio/video decompresser/decoder for decompressing/decoding a compressed/encoded audio/video data stream in order to generate video images for display on a display...
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5912894 |
Method and system for monitoring traffic to optimize the bandwidth reserved to an audio channel connection in a high speed digital network
This invention deals with a method and system for dynamically adjusting the communication bandwidth assigned to an audio channel connection in a high speed digital network. More particularly, the...
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5909445 |
Mechanism for transporting digital pots signals within framing structure of high bit rate digital local subscriber loop signals
A local subscriber loop architecture embeds digitized POTS signals into the framing format of high bit rate digital subscriber loop signals being transported over a local loop for serving both...
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5900906 |
Image communication apparatus having automatic answering and recording function
Video data is coded at either a minimum transfer rate or maximum transfer rate and stored in a storage unit as a video reply message. In a case where the video data has been coded at the minimum...
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5892772 |
Spatial reuse by means of dual homing on a ring network
A ring network with dual homing connections to the network from one or more nodes via physically separated concentrators.
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5867493 |
Apparatus and method for selective masking of telecommunications systems
A telecommunications apparatus is disclosed for use in conjunction with a local switch. The apparatus operates in a bypass mode for messages that do not require compression/decompression, and in a...
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5867502 |
Method and system for interfacing an ATM switch and an optical network wherein bandwidth is maximized and non-local data streams are grouped into destination groups
A method and system for maximization of the use of bandwidth capacity of an optical network when adding a data stream received from a switch to the optical network. In one embodiment, a data stream...
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5850526 |
LAN station for determining the destination LAN station is capable of decompressing by comparing destination address to block of addresses assigned by a LAN manufacturer
Data is compressed in an industry-standard local-area network (LAN) such as IEEE 802.2 or 802.3. Compression occurs at a low level, in the data link layer just above the physical layer. The data in...
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5841777 |
System and method for accommodating ABR and CBR traffic on a shared communications channel
A system and method for managing the bandwidth of a shared communications channel is described. The shared channel connects a master station with a number of client stations. The shared channel...
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5838681 |
Dynamic allocation of port bandwidth in high speed packet-switched digital switching systems
A system and method for routing data between input and output ports in an ATM node of a packet-switched network allocates port capacity in accordance with the requirements of the users connected to...
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5831872 |
Method and system for compressing a video signal using dynamic frame recovery
A video signal is converted into a coefficient signal for each frame in a video image. Each coefficient signal comprises block coefficient signals which represent the pixels in a pixel map block...
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5825779 |
PBX networking with quality of service control
A networking node for interconnecting a local telephone switch such as a private branch exchange (PBX) with other such switches through other nodes, with respective internodal multichannel digital...
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5805600 |
Mechanism for providing full utilization of high data rate serial communication link conveying data sourced from data terminal equipment and compressed by high compression ratio data compression-protocol engine
State of the art data compression-protocol engines provide high compression ratios for improving data transport over a high data rate serial communication link. However, a respective data port of...
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5787431 |
Database development system with methods for java-string reference lookups of column names
A Java-based rapid application development (RAD) environment for creating applications providing named-based programmatic access to information from columns in databases is described. For...
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5784571 |
Method for reducing the bandwidth requirement in a system including a video decoder and a video encoder
In a video system having an encoder and multiple decoders, a snooping circuit in each decoder compares an address on a common data bus to determine whether encoded video data is read or written by...
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5774467 |
Method and device for transforming a series of data packets by means of data compression
The invention relates to a method and device for converting data packets by coding or compression, source data packets being converted into transmission data packets. In order to achieve an optimal...
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5771238 |
Enhanced one way radio seven bit data network
Transmission (206) and reception techniques and apparatus (209) allow a restricted seven bit one way radio data network, such as a paging network (202), to transmit eight bit ASCII and binary data....
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5742773 |
Method and system for audio compression negotiation for multiple channels
Modem-equipped computers which can initiate an audio channel using the modem data connection. The connection is initiated with a new protocol called the voice-over-data protocol. The new protocol...
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5737331 |
Method and apparatus for conveying audio signals using digital packets
A digital telecommunication network (10) provides an audio processor (56) for each call in each external node (14). The audio processor (56) includes a vocoder and additional functions. At a source...
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5734677 |
Method for compression of loss-tolerant video image data from multiple sources
Data as may be employed in telecommunication is segmented into blocks, each block having associated therewith a metric of distortion as a function of the number of bits in the block to represent...
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5729535 |
Method and apparatus for adapting a computer for wireless communications
Disclosed herein is a computer capable of transmitting and receiving video and audio signals over an RF bandwidth. The RF bandwidth is allocated among the audio and video signals to allow the audio...
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5724539 |
System for selectively storing stripes of data in tracks of disks so that sum of transfer rates of stripes match communication bandwidth to host
A method and apparatus for bandwidth balancing of data transfer operations between a computer and a storage subsystem are disclosed. The storage subsystem contains a number of storage devices such...
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5691986 |
Methods and apparatus for the editing and insertion of data into an encoded bitstream
Methods and apparatus for inserting data into an encoded data stream are disclosed. In accordance with the disclosed methods data is inserted into an encoded data stream while maintaining MPEG-2...
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5691718 |
Dual 4-wire analog data multiplexer
An improved method and apparatus for transmission of dual 4-wire analog data services between a telephone company location and a subscriber premises over a single twisted pair, providing a 4:1 pair...
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5689436 |
Apparatus for compressing and decompressing video signal
While a image is displayed on a color monitor 44 based on a first digital video signal DRGB1 output from a first A-D converter 52, a second digital video signal DRGB2 output from a second A-D...
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5675703 |
Apparatus for decoding compressed and coded sound signal
An apparatus for decoding a compressed and coded sound signal by applying thereto an inverse quantization processing and a synthesis processing is arranged to include a data extracting unit for...
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5673392 |
Method of executing communication program in modem apparatus
A method of executing communication programs in a modem apparatus. A plurality of communication programs used to perform data communication or facsimile communication are stored in an internal...
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5673257 |
Computer-based multifunction personal communication system
A personal communications system is described which includes components of software and hardware operating in conjunction with a personal computer. The user interface control software operates on a...
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5673290 |
ADSL compatible discrete multi-tone apparatus
An improved discrete multi-tone transmission scheme is describe that contemplates encoding digital data and modulating the encoded data onto a discrete multi-tone signal having a total bandwidth of...
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5657358 |
Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or plurality of RF channels
A toll quality terrestrial wireless digital multiple access terrestrial communication system is disclosed having a base station in communication with telephone lines and with mobile subscriber...
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5646946 |
Apparatus and method for selectively companding data on a slot-by-slot basis
A data processing system (10) and associated method (150) of operation selectively compand data on a slot-by-slot basis. The data processing system (10) includes a processor (12), processor bus...
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5642421 |
Encryption of low data content ATM cells
The security provided by encryption of ATM cells is enhanced by testing each cell for low data content level. If a cell has a low data content, its contents are nevertheless compressed and the...
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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...
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5623491 |
Device for adapting narrowband voice traffic of a local access network to allow transmission over a broadband asynchronous transfer mode network
A voice adaptation device (18) provides an interface between a narrowband local access network and a broadband asynchronous transfer mode (ATM) backbone network (16). The voice adaptation device...
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5600649 |
Digital simultaneous voice and data modem
A personal communications system is described which includes components of software and hardware operating in conjunction with a personal computer. The user interface control software operates on a...
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5596573 |
Transfer of voice messages
A method and a communication network including a public telephone network and a narrow band radio network for packet-switching of data between stationary and mobile terminals. Voice messages may be...
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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...
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5590131 |
Efficient distributed queueing random access method for the medium access control layer in networks with broadcast channels
An efficient distributed queueing random access method and network system provide, in the medium access control layer in networks with broadcast channels, for conserving reservation bandwidth and...
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5579316 |
Communications technique for transmitting limited size digital data frames using macro headers to represent multiple header code patterns associated with encapsulation protocols and signal processing operations to which transmitted data are subjected
Network bit efficiency for transmitting a limited size data frame over a digital communication system is enhanced by a macro-header encoding mechanism which replaces plural header portions of a...
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5577041 |
Method of controlling a personal communication system
A personal communications system is described which includes components of software and hardware operating in conjunction with a personal computer. The user interface control software operates on a...
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5574725 |
Communication method between a personal computer and communication module
A personal communications system is described which includes components of software and hardware operating in conjunction with a personal computer. The user interface control software operates on a...
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5570363 |
Transform based scalable audio compression algorithms and low cost audio multi-point conferencing systems
A transform based compression mechanism to establish a single compression technique which is applicable for all audio compression ranging from very low bit rate speech to CD/Audio quality music....
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5563892 |
Method of upgrading the program transport capacity of an RF broadcast channel
The program transport capacity of an RF broadcast channel is upgraded by replacing analog services with digitally multiplexed services. RF channels can be obtained from one or more parties, e.g....
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5561662 |
Subscriber information processing method in a connectionless data service
A switch interface unit, a monitor unit, and a control system interface unit are connected as external units to a highway to which a subscriber information processing unit is also connected so that...
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5555541 |
Exchange connected to a control channel junction line
A control channel junction line system for use with a digital switching network wherein a talking channel used in a control channel is used in a high efficiency is disclosed. Each exchange of the...
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5555260 |
Decentralized base station for reducing bandwidth requirements for communications to and from radio transmitter-receivers in a telecommunications network
A TDMA cellular mobile radio system has at least one network control unit, at least one radio transceiver, and at least one multiplexor for multiplexing and demultiplexing digitally encoded and...
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