| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 81 | System for providing a directory of AV devices and capabilities and call processing such that each participant participates to the extent of capabilities available | US660418 | 1996-06-07 | US5884039A | 1999-03-16 | Lester F. Ludwig; J. Chris Lauwers; Keith A. Lantz; Gerald J. Burnett; Emmett R. Burns |
| A multimedia collaboration system that integrates separate real-time and asynchronous networks--the former for real-time audio and video, and the latter for control signals and textual, graphical and other data--in a manner that is interoperable across different computer and network operating system platforms and which closely approximates the experience of face-to-face collaboration, while liberating the participants from the limitations of time and distance. These capabilities are achieved by exploiting a variety of hardware, software and networking technologies in a manner that preserves the quality and integrity of audio/video/data and other multimedia information, even after wide area transmission, and at a significantly reduced networking cost as compared to what would be required by presently known approaches. The system architecture is readily scalable to the largest enterprise network environments. It accommodates differing levels of collaborative capabilities available to individual users and permits high-quality audio and video capabilities to be readily superimposed onto existing personal computers and workstations and their interconnecting LANs and WANs. In a particular preferred embodiment, a plurality of geographically dispersed multimedia LANs are interconnected by a WAN. The demands made on the WAN are significantly reduced by employing multi-hopping techniques, including dynamically avoiding the unnecessary decompression of data at intermediate hops, and exploiting video mosaicing, cut-and-paste and audio mixing technologies so that significantly fewer wide area transmission paths are required while maintaining the high quality of the transmitted audio/video. | ||||||
| 82 | Two monitor videoconferencing hardware | US650123 | 1996-06-07 | US5867654A | 1999-02-02 | Lester F. Ludwig; J. Chris Lauwers; Keith A. Lantz; Gerald J. Burnett; Emmett R. Burns |
| A multimedia collaboration system and method that integrates separate real-time and asynchronous networks--the former for real-time audio and video, and the latter for control signals and textual, graphical and other data. The system includes separate data and AV paths that interconnect a plurality of workstations. Each workstation includes two monitors--one for representing video images of the participants and the other for reproducing data interactively shared and manipulated by the participants. | ||||||
| 83 | System for teleconferencing in which collaboration types and participants by names or icons are selected by a participant of the teleconference | US660880 | 1996-06-10 | US5854893A | 1998-12-29 | Lester F. Ludwig; J. Chris Lauwers; Keith A. Lantz; Gerald J. Burnett; Emmett R. Burns |
| A multimedia collaboration system that integrates separate real-time and asynchronous networks--the former for real-time audio and video, and the latter for control signals and textual, graphical and other data--in a manner that is interoperable across different computer and network operating system platforms and which closely approximates the experience of face-to-face collaboration, while liberating the participants from the limitations of time and distance. These capabilities are achieved by exploiting a variety of hardware, software and networking technologies in a manner that preserves the quality and integrity of audio/video/data and other multimedia information, even after wide area transmission, and at a significantly reduced networking cost as compared to what would be required by presently known approaches. The system architecture is readily scalable to the largest enterprise network environments. It accommodates differing levels of collaborative capabilities available to individual users and permits high-quality audio and video capabilities to be readily superimposed onto existing personal computers and workstations and their interconnecting LANs and WANs. In a particular preferred embodiment, a plurality of geographically dispersed multimedia LANs are interconnected by a WAN. The demands made on the WAN are significantly reduced by employing multi-hopping techniques, including dynamically avoiding the unnecessary decompression of data at intermediate hops, and exploiting video mosaicing, cut-and-paste and audio mixing technologies so that significantly fewer wide area transmission paths are required while maintaining the high quality of the transmitted audio/video. | ||||||
| 84 | Teleconferencing system in which location video mosaic generator sends combined local participants images to second location video mosaic generator for displaying combined images | US660461 | 1996-06-07 | US5802294A | 1998-09-01 | Lester F. Ludwig; J. Chris Lauwers; Keith A. Lantz; Gerald J. Burnett; Emmett R. Burns |
| A multimedia collaboration system that integrates separate real-time and asynchronous networks--the former for real-time audio and video, and the latter for control signals and textual, graphical and other data--in a manner that is interoperable across different computer and network operating system platforms and which closely approximates the experience of face-to-face collaboration, while liberating the participants from the limitations of time and distance. These capabilities are achieved by exploiting a variety of hardware, software and networking technologies in a manner that preserves the quality and integrity of audio/video/data and other multimedia information, even after wide area transmission, and at a significantly reduced networking cost as compared to what would be required by presently known approaches. The system architecture is readily scalable to the largest enterprise network environments. It accommodates differing levels of collaborative capabilities available to individual users and permits high-quality audio and video capabilities to be readily superimposed onto existing personal computers and workstations and their interconnecting LANs and WANs. In a particular preferred embodiment, a plurality of geographically dispersed multimedia LANs are interconnected by a WAN. The demands made on the WAN are significantly reduced by employing multi-hopping techniques, including dynamically avoiding the unnecessary decompression of data at intermediate hops, and exploiting video mosaicing, cut-and-paste and audio mixing technologies so that significantly fewer wide area transmission paths are required while maintaining the high quality of the transmitted audio/video. | ||||||
| 85 | Telephone control system which connects a caller with a subscriber AT A telephone address | US354200 | 1994-12-12 | US5752191A | 1998-05-12 | Robert M. Fuller; Frederick A. Epler; Eugene W. Oates |
| A communications control system is disclosed which includes: a computer including means for storing a schedule for subscribers of the system, the schedule including time and call-processing information for the subscribers which indicate at least one call processing mode and at least one time for a subscriber to have telephone calls processed via the system; a switch controlled by the computer; a communication network for connecting a call from a caller to one or more points on the network; a two-way communications device; a communication apparatus for communicating with the communications device, the apparatus being coupled with the computer for communicating information therewith,the computer being programmed to control the switch to connect the caller, in response to a telephone call placed by the caller, to one or more points on the network selected by the computer using information supplied to the computer by the schedule, the subscriber and the communication apparatus. | ||||||
| 86 | Variable communication bandwidth for providing automatic call back and call hold | US451296 | 1995-05-26 | US5701295A | 1997-12-23 | Bruce Merrill Bales; Stephen Max Thieler |
| Automatically reducing communication bandwidth to coincide with the state of a communication call by a communication terminal. If a first telecommunication terminal puts a second telecommunication terminal on hold, the first telecommunication terminal transmits a transport message that reduces the bandwidth of the call to a low speed data link. When the first telecommunication terminal wishes to again be in communication with the second telecommunication terminal, a transport message is utilized to restore the communication bandwidth. If a first communication terminal calls a second communication terminal and the second communication terminal is busy, the first communication terminal reduces the bandwidth of the communication call to that of a low speed data link. When the second telecommunication terminal becomes idle, the second terminal sends a message to the first terminal indicating the idle state. The first telecommunication terminal then uses a transport message to increase the communication bandwidth to the desired amount and engages the second communication terminal in a communication call. | ||||||
| 87 | Multimedia collaboration system arrangement for routing compressed AV signal through a participant site without decompressing the AV signal | US131523 | 1993-10-01 | US5689641A | 1997-11-18 | Lester F. Ludwig; J. Chris Lauwers; Keith A. Lantz; Gerald J. Burnett; Emmett R. Burns |
| A multimedia collaboration system that integrates separate real-time and asynchronous networks--the former for real-time audio and video, and the latter for control signals and textual, graphical and other data--in a manner that is interoperable across different computer and network operating system platforms and which closely approximates the experience of face-to-face collaboration, while liberating the participants from the limitations of time and distance. These capabilities are achieved by exploiting a variety of hardware, software and networking technologies in a manner that preserves the quality and integrity of audio/video/data and other multimedia information, even after wide area transmission, and at a significantly reduced networking cost as compared to what would be required by presently known approaches. The system architecture is readily scalable to the largest enterprise network environments. It accommodates differing levels of collaborative capabilities available to individual users and permits high-quality audio and video capabilities to be readily superimposed onto existing personal computers and workstations and their interconnecting LANs and WANs. In a particular preferred embodiment, a plurality of geographically dispersed multimedia LANs are interconnected by a WAN. The demands made on the WAN are significantly reduced by employing multi-hopping techniques, including dynamically avoiding the unnecessary decompression of data at intermediate hops, and exploiting video mosaicing, cut-and-paste and audio mixing technologies so that significantly fewer wide area transmission paths are required while maintaining the high quality of the transmitted audio/video. | ||||||
| 88 | Method and apparatus for providing user controlled call management services | US609629 | 1996-03-01 | US5668862A | 1997-09-16 | Cecil H. Bannister; F. Marco Marchetti; Richard C. Mo; Tod W. Switzer; Dhawal Balkrishna Moghe |
| A method of providing call screening to a subscriber of personal communication services facilitates the screening of incoming calls by associating the number dialed by a calling party with a function or role of the dialed number. This function or role is then sent to the subscriber when an incoming call is received. This way, the subscriber can decide whether to answer the incoming call based upon knowing the role or context associated with the dialed number. The subscriber is also provided with user controlled features which can be invoked by the use of DTMF codes. The subscriber can place a calling party on hold prior to answering the incoming call. In addition, the subscriber can proceed with a call transfer from a wireless telephone to a wired telephone and vice-versa, while the call is still in progress. Another feature allows the subscriber to implement a real-time call screening, while the calling party is leaving a message on voice mail. Yet another feature provides a wide area virtual extension to several subscribers such that an incoming call will be simultaneously routed to each subscriber in the group, as if their telephones were extensions of each other. | ||||||
| 89 | Multimedia collaboration system with separate data network and A/V network controlled by information transmitting on the data network | US660460 | 1996-06-07 | US5617539A | 1997-04-01 | Lester F. Ludwig; J. Chris Lauwers; Keith A. Lantz; Gerald J. Burnett; Emmett R. Burns |
| A multimedia collaboration system that integrates separate real-time and asynchronous networks--the former for real-time audio and video, and the latter for control signals and textual, graphical and other data--in a manner that is interoperable across different computer and network operating system platforms and which closely approximates the experience of face-to-face collaboration, while liberating the participants from the limitations of time and distance. These capabilities are achieved by exploiting a variety of hardware, software and networking technologies in a manner that preserves the quality and integrity of audio/video/data and other multimedia information, even after wide area transmission, and at a significantly reduced networking cost as compared to what would be required by presently known approaches. The system architecture is readily scalable to the largest enterprise network environments. It accommodates differing levels of collaborative capabilities available to individual users and permits high-quality audio and video capabilities to be readily superimposed onto existing personal computers and workstations and their interconnecting LANs and WANs. In a particular preferred embodiment, a plurality of geographically dispersed multimedia LANs are interconnected by a WAN. The demands made on the WAN are significantly reduced by employing multi-hopping techniques, including dynamically avoiding the unnecessary decompression of data at intermediate hops, and exploiting video mosaicing, cut-and-paste and audio mixing technologies so that significantly fewer wide area transmission paths are required while maintaining the high quality of the transmitted audio/video. | ||||||
| 90 | Telephone system with scheduled handling of calls | US353081 | 1994-12-09 | US5610970A | 1997-03-11 | Robert M. Fuller; Frederick A. Epler; Maxwell E. Manowski |
| A telephone system which provides scheduled telephone call connecting services. The system includes a telephone switching system for concurrently servicing a plurality of telephone subscribers and a telephone switching system controller coupled to the switching system. The controller controls how calls from callers to subscribers are handled in the telephone switching system. The controller includes a memory for storing a plurality of addresses for each subscriber and a schedule for each subscriber, the controller, in response to a call directed to a subscriber, instructing the telephone switching system to connect the detected call to a selected one of the addresses stored in the memory, the selected one being selected from the plurality of addresses stored for the subscriber according to the schedule stored for the subscriber. | ||||||
| 91 | Video telephone | US361957 | 1994-12-22 | US5587735A | 1996-12-24 | Kiyoshi Ishida; Hiroshi Goto |
| A video telephone to be connected to the ISDN is a unitary structure comprising a communication controller for controlling communication of digital data, such as voice signal, image signal and facsimile/camera control signal, a dial or key panel unit, a telephone controller for controlling the functions of a handset and the key panel unit, a camera for inputting an image, a display for outputting an image, and image CODEC for coding an input image signal and decoding a received image signal. The camera is tiltable and detachable. | ||||||
| 92 | Method and apparatus for providing user controlled call management services | US466189 | 1995-06-06 | US5548636A | 1996-08-20 | Cecil H. Bannister; Marco Marchetti; Richard C. Mo; Tod W. Switzer; Dhawal B. Moghe |
| A method of providing call screening to a subscriber of personal communication services facilitates the screening of incoming calls by associating the number dialed by a calling party with a function or role of the dialed number. This function or role is then sent to the subscriber when an incoming call is received. This way, the subscriber can decide whether to answer the incoming call based upon knowing the role or context associated with the dialed number. The subscriber is also provided with user controlled features which can be invoked by the use of DTMF codes. The subscriber can place a calling party on hold prior to answering the incoming call. In addition, the subscriber can proceed with a call transfer from a wireless telephone to a wired telephone and vice-versa, while the call is still in progress. Another feature allows the subscriber to implement a real-time call screening, while the calling party is leaving a message on voice mail. Yet another feature provides a wide area virtual extension to several subscribers such that an incoming call will be simultaneously routed to each subscriber in the group, as if their telephones were extensions of each other. | ||||||
| 93 | Telephone control system with branch routing | US480242 | 1990-02-15 | US5375161A | 1994-12-20 | Robert M. Fuller; Frederick A. Epler; Maxwell E. Manowski |
| A method and apparatus for processing incoming telephone calls to a telephone control system. The apparatus includes a memory for storing electronic signals including signals representative of telephone network addresses and a processing unit for processing an incoming telephone call from a caller. Information is communicated by the processing unit to said caller indicating that the incoming call can be routed (e.g. branched) to any one of at least two telephone network destinations. The processing unit responds to the transmission by the caller of a command corresponding to the desired telephone network address by routing the incoming call to the telephone network address corresponding to the command transmitted by said caller. | ||||||
| 94 | Apparatus for interfacing analog telephones and digital data terminals to an ISDN line | US832269 | 1992-02-07 | US5305312A | 1994-04-19 | Martin J. Fornek; Dennis R. Kinn; Steven P. Meade; Blaine E. Welman |
| An interface to an integrated service, digital network (ISDN) line for up to two analog dual tone, multifrequency telephones and up to four personal computers or data terminals. A stored program-controlled processor controls access to the ISDN line for the analog and digital interface circuits. The processor also provides access to switch-controlled ISDN features for the analog telephones (e.g., call waiting, call hold, etc.). | ||||||
| 95 | PROCEDURE AND SYSTEM FOR INDICATING A CALL IN HOLD STATE IN A TELECOMMUNICATION SYSTEM | PCT/FI9900313 | 1999-04-16 | WO9955111A3 | 1999-12-02 | PERNU SAKARI |
| The present invention concerns a method and system for indicating a call in hold state. In the invention, a message containing information regarding a call in hold state is sent from a local exchange to a telecommunication terminal. The information contained in the message is converted in the telecommunication terminal into a string to be presented on the display or into sound signals. The invention makes it possible to prevent calls in hold state from being left "hanging". | ||||||
| 96 | CELLULAR CORDLESS TELECOMMUNICATION SYSTEM WITH ISDN CONNECTION | PCT/DE9600933 | 1996-05-29 | WO9638990A2 | 1996-12-05 | PAULI BURKHARD; NEUHAUS RALF; IDE HANS-DIETER; FLAKE HORST; WEWERS OTGER |
| In order to design a cellular cordless telecommunication system such that a plurality of its performance features, e.g. synchronizing, roaming, handover, internal connections, holding, enquiries, transfer, etc., can be carried out without an additional wire connection between the cordless base stations of the cellular cordless telecommunication system, the cordless base stations are connected to an SO-bus. | ||||||
| 97 | METHOD AND DEVICE FOR SESSION CONTROL IN HYBRID TELECOMMUNICATION NETWORKS | PCT/EP2005008164 | 2005-07-28 | WO2006010614A3 | 2006-06-22 | HU YUN CHAO; DEN HARTOG JOS; TAORI RAKESH |
| Combinational networks may provide simultaneous connectivity over networks of different type between terminals. Communication sessions on different network types such as Circuit switched and Packet switched, belonging to the same user equipment can be correlated. In case a communication session on a circuit switched network is halted by a supplementary service e.g. at an event such as acceptance of Call Hold, a communication session on a correlated packet switched network should be halted as well. A user equipment that detects the event sends a halt message to the circuit switched network and a message to the packet switched network or a session state manager node. The session state manager node either forwards the halt-message to the packet switched network, or sends a halt-message to the packet switched network when the packet switched network does not notify that a halt has occurred. | ||||||
| 98 | ISDN NETWORK WITH A DECT INTERMEDIATE SYSTEM | PCT/DE9801131 | 1998-04-22 | WO9848589A3 | 1999-03-11 | FLAKE HORST |
| The invention relates to a method for operating a connection in an ISDN network (NE) with at least one DECT intermediate system (IS) in which for each connection the triplet terminal address (TEI 1)-call identification (CR2)-code of the communication service (BC 1) from the connections protocol are stored in a list (LIS). According to the invention, upon arrival of the acknowledgement (HOLD ACK) for holding a connection, this triple (TEI 1-CR 2-BC 1) is marked. Upon arrival of an acknowledgement (RETR ACK) for reactivation of a connection, a search is carried out for the marked call identification (CR 2) under the same terminal address (TEI 1) in the list, so that the DECT connection which is provided corresponds to the code of the communication service (BC 1) of the marked triple (TEI 1-CR 2-BC 1), and the marking (X) is ultimately deleted again. | ||||||
| 99 | MULTIMEDIA COLLABORATION SYSTEM | PCT/US9411193 | 1994-10-03 | WO9510158A3 | 1995-05-26 | LUDWIG LESTER F; LAUWERS CHRIS J; LANTZ KEITH A; BURNETT GERALD J; BURNS EMMETT R |
| A collaboration system that integrates separate real-time and asynchronous networks - the former for real-time audio and video, and the latter for control signals and textual, graphical and other data - in a manner which closely approximates the experience of face-to-face collaboration. These capabilities are achieved by exploiting a variety of hardware, software and networking technologies in a manner that preserves the quality and integrity of audio/video/data and other multimedia information, even after wide area transmission, and at a significantly reduced networking cost as compared to what would be required by presently known approaches. The system architecture is readily scalable to the largest enterprise network environments. It accommodates differing levels of collaborative capabilities available to individual users and permits high-quality audio and video capabilities to be readily superimposed onto existing personal computers and workstations (12) and their interconnecting LANs (10) and WANs (15). In the case of a plurality of geographically dispersed LANs (10) interconnected by a WAN (15), the demands made on the WAN are significantly reduced by employing multi-hopping techniques, including avoiding the unnecessary decompression of data at intermediate hops, as well as video mosaicing and cut-and-paste technology. | ||||||
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