Matches 401 - 450 out of 546 < 1 2 3 4 5 6 7 8 9 10 11 >
Match Document Document Title
5600775 Method and apparatus for annotating full motion video and other indexed data structures  
Full motion digital video frames, or other indexed data structures, are annotated with text, graphics, and digital audio without modifications to the original video information. The video and...
5600797 System for identifying new client and allocating bandwidth thereto by monitoring transmission of message received periodically from client computers informing of their current status  
Client computers on a computer network send messages informing their management computer on the network of the status of transmissions such as those for conferences involving the client computers....
5600572 Method for transmission of variable-format images via low data rate transmission systems  
The invention discloses a method for coding a video image on a pixel block basis in a transmission system including at least one transmitter and one receiver, where the video image is in one of...
5598209 Method for automatically adjusting a video conferencing system camera  
A method for automatically adjusting the pan and tilt of a camera, such as used in a videoconferencing system. A pointer and a picture of the camera's field of view are provided on a display...
5594509 Method and apparatus for audio-visual interface for the display of multiple levels of information on a display  
An interactive audio-visual (A/V) transceiver is advantageously coupled to a television and/or telephone (T/T) cable, a TV, a video recorder (VCR), and other A/V devices. The A/V transceiver...
5594725 Process and system for video rate control in a multipoint video conference  
A multipoint video conference system (8) is provided that has video rate control and allows communication of audio, video and data information between end-point units (16). The multipoint video...
5592547 Processing audio signals using a discrete state machine  
A level of transmit attenuation and a level of receive attenuation are generated using a discrete state machine of a controller. Local audio signals generated with a local microphone are attenuated...
5589873 Multipoint television conference system with a multipoint control unit for registering information about TV conference rooms and room groups and allowing a selected room to participate in the TV conference based on registered information  
A multipont TV conference system including a multipoint control unit connected with TV conference rooms through a communication network. The multipoint control unit includes: a register for...
5590064 Post-filtering for decoded video signals  
Encoded video signals comprise sets of transform coefficients (e.g., DCT coefficients) corresponding to different regions of a video frame. An inverse transform is applied to sets of transform...
5590128 Dial lists for computer-based conferencing systems  
The user of a local computer node (i.e., a caller) selects a remote computer node (i.e., a callee) for a computer conference call from a display containing a directory of possible callees. In one...
5589878 Method of determining an error in a video conferencing system camera  
A videoconferencing system including error detection, monitoring, and reporting. A controller (10) controls the operation of a camera (17) or a peripheral device, such as a video cassette recorder...
5585858 Simulcast of interactive signals with a conventional video signal  
A system for simulcasting a fully interactive program with a normal conventional program in the same standard video signal bandwidth. It allows active participation by subscribers who have...
5583565 Method for automatically adjusting the pan and tilt of a video conferencing system camera  
A videoconferencing system which is easy to use. A camera unit (17) provides a picture which is displayed on the display screen of a monitor (21A, 21B). A controller (10) controls the operation of...
5578077 Mechanical heart, body fluid and drug infusion pump  
The present invention describes a new pump which can be used as a mechanical heart, as a body fluid, as a drug infusion pump, and in similar or related applications for the circulation of body...
5579389 Histogram-based processing of audio signals  
A local histogram is generated with a controller based on local audio signals generated with a local microphone. A level of transmit attenuation and a level of receive attenuation are generated...
5577107 Communication terminal apparatus for displaying whether any of a plurality of other communication terminal apparatuses is receiving an image  
When it is desired to display an image of another station during a multi-station visual conference, an image request signal is output. A multi-station visual conference communication control device...
5574934 Preemptive priority-based transmission of signals using virtual channels  
A computer system for transmitting two or more types of signals. Each type of signal is assigned a priority level. Signals of a particular type are transmitted as they become ready for...
5574778 Method and apparatus for providing video services  
A system and method for video-on-demand and videoconferencing services using a broadband switch network, a broadband session controller, and a broadband service control point. The broadband network...
5572582 Method and apparatus for establishing communication between two teleconferencing endpoints  
An automatic method and apparatus for communicating information, such as teleconference data between teleconferencing systems. A first endpoint identifies communication capabilities to a second...
5568183 Network videoconferencing system  
A videoconferencing system which readily accommodates new devices and new features. A plurality of devices ( 10, 12-18, 20-22) are connected to a network (23) by a plurality of network converters...
5566238 Distributed processing of audio signals  
Remote audio information corresponding to remote audio signals are received by a controller from a remote node. A level of transmit attenuation and a level of receive attenuation are generated by...
5565910 Data and television network for digital computer workstations  
A data and television network for digital computer workstations that operate on a local area network (LAN) to exchange data. The network includes a private branch exchange (PBX) having a plurality...
5565911 Teleconference system with improved resolution of transmitted picture  
The present invention is directed to a teleconference system in which display data is transmitted at least between a data transmitting apparatus and a data receiving apparatus. The data receiving...
5563988 Method and system for facilitating wireless, full-body, real-time user interaction with a digitally represented visual environment  
An electronic system for integrating a user's moving image into a computer-generated pictorial environment, and allowing the user to interact with the environment and objects therein. The...
5563882 Process for converting a point-to-point multimedia call to a bridged multimedia call  
A process for converting a point-to-point multimedia call into a bridged multimedia call for accommodating multi-party conferencing. The process utilizes the bearer channel configuration of the...
5559722 Process, apparatus and system for transforming signals using pseudo-SIMD processing  
A plurality of signals in a first domain are loaded into a plurality of registers, wherein each register contains two or more signals. A transform is applied to the plurality of registers to...
5555017 Seamless multimedia conferencing system using an enhanced multipoint control unit  
Techniques are disclosed for controlling the communication of multimedia electronic signals representing audio, video, and/or data. These techniques operate in conjunction with a system including a...
5550586 Video camera and image input device connected through signal line for transferring multiplex data, and image input system using them  
A video camera including an imager and an analog-to-digital (A/D) convertor for converting video signals read out from the imager to digital image data, for applying the digital image data to an...
5548346 Apparatus for integrally controlling audio and video signals in real time and multi-site communication control method  
A real time visual communication system capable of improving a correspondence between a received video signal and a received audio signal in real time and improving reality. An AV signal is...
5548591 Multi-point communication system and communication terminal station apparatus  
A multi-point communication system comprising a communication terminal station apparatus which is connected to a communication line constructing a loop and includes a recognition unit to recognize...
5548324 Process, apparatus and system for displaying multiple video streams using linked control blocks  
A computer-implemented process, apparatus, and system for displaying multiple video streams at the same time on a single display monitor, where at least two of the video streams may have different...
5546598 Working situation management apparatus  
A working situation management system which includes an input section for inputting information relating to working, and a detecting section for detecting an occurrence of a predetermined change in...
5541657 Image transmission with divided image signal transmission through selected channels  
When dynamic image signals from a plurality of dynamic image signal sources are simultaneously received by a plurality of receivers, a dynamic image signal to be transmitted is transmitted while...
5541639 Video conference system automatically started at reserved time  
A video conference system control section accepts reservation of a party with which a video conference is the to be held and a video conference date and time entered through a keying section, and...
5539483 Panoramic projection apparatus  
An omnidirectional or panoramic projector comprise several image producing devices with a common virtual optical center. The images produced by devices such as LCD or film are arranged to form a...
5539663 Process, apparatus and system for encoding and decoding video signals using temporal filtering  
For decoding, a first portion of an encoded bitstream is decoded to generate a first decoded video frame. A second portion of the encoded bitstream is decoded to generate a second decoded video...
5539741 Audio conferenceing system  
A computer workstation receives multiple audio input streams over a network in an audio conference. The audio input streams are kept separate by storing them in different queues. Digital samples...
5537141 Distance learning system providing individual television participation, audio responses and memory for every student  
An interactive distance learning system which provides individualized and meaningful interactive responses to each student, as if the student is receiving instruction directly from a private tutor...
5537338 Process and apparatus for bitwise tracking in a byte-based computer system  
A bit pointer is updated by a specified value; and a byte pointer is updated in accordance with a lookup table and the updated bit pointer.
5535138 Encoding and decoding video signals using dynamically generated quantization matrices  
Video signals are encoded using quantization matrices generated based on one or more quantization matrix parameters that are contained in the encoded bit stream. Encoded video signals are decoded...
5534914 Videoconferencing system  
A videoconferencing network for digital computer workstations that operate on a local area network (LAN) to exchange data. The network includes a signalling local area network (A-LAN), connected to...
5532940 Process, apparatus and system for selecting quantization levels for encoding video signals  
A quantization level is selected for the current video frame in accordance with a plurality of mappings, wherein each mapping correlates an activity measure with a bits per frame measure and each...
5530472 Video conference system including a non-reserved video conference capability  
A system for controlling a video-conference network by the end user at a video conference site which is comprised of a public telecommunications network connected to video-conference controllers at...
5528238 Process, apparatus and system for decoding variable-length encoded signals  
A fixed-length signal is retrieved from a bitstream comprising one or more variable-length encoded signals. A variable-length encoded signal of the bitstream is decoded to generate a decoded signal...
5528289 Method for automatically adjusting a videoconferencing system camera to center an object  
A videoconferencing system which is easy to use. A camera unit (17) provides a picture which is displayed on the display screen of a monitor (21A, 21B). A controller (10) controls the operation of...
5526354 Packet communication terminal having synchronized audio and cursor data  
The present invention relates a communication terminal for the synchronization of audio and visual information within a communication system. Audio communication between the parties to a video...
5526037 Method for remotely controlling a peripheral device in a videoconferencing system  
A videoconferencing system for remotely controlling a peripheral device such as a VCR (20). A controller (10) controls the operation of the peripheral device by transmitting a conversion program to...
5524110 Conferencing over multiple transports  
A computer-based conferencing system capable of selectively conferencing with a remote node over two or more different transports. A host processor controls the generation of local conferencing...
5515296 Scan path for encoding and decoding two-dimensional signals  
A scan path is generated using one or more two-dimensional sets of training signals. For encoding, a two-dimensional set of signals is encoded using the scan path. For decoding, a two-dimensional...
5515099 Video conferencing system controlled by menu and pointer  
A videoconferencing system which is easy to use. First and second video devices, such as a camera unit (17) or a videocassette recorder (20), provide first and second pictures, respectively. A...
Matches 401 - 450 out of 546 < 1 2 3 4 5 6 7 8 9 10 11 >