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| Number | Title | Issue Date |
| 6418203 | System and method for communicating audio information between a computer and a duplex speakerphone modem A modem configurable to operate in a normal mode to perform data communications on the Public Switched Telephone Network (PSTN) additionally configurable to operate in a duplex speakerphone mode. Preferably, the modem is a Personal Computer Memory Card In... | 07/09/2002 |
| 6301339 | System and method for providing a remote user with a virtual presence to an office Disclosed is a system and method for providing a remote user with a virtual presence to an office. The method allows a user operating a remote computer system to receive a fax on a first communication line while simultaneously performing voice communicati... | 10/09/2001 |
| 6295357 | System and method for ringing other subscriber telephones connected to a telephone line during data communications on the telephone line A system and method for enabling a subscriber to receive incoming telephone calls on a telephone line and ring all of the telephones connected to a first conductor pair inside the subscriber's premises, wherein the first conductor pair would have normally... | 09/25/2001 |
| 6292484 | System and method for low overhead multiplexing of real-time and non-real-time data A system and method for low latency multiplexing of real-time and regular data in the same data frame. Real-time data capable of being delivered at regular intervals (such as digitized voice) is multiplexed with regular (non-real-time data) across a commu... | 09/18/2001 |
| 6212274 | Line powered modem A battery powered computer system includes an add-on device, such as a modem, with a power supply that uses power from a telephone line to provide power to the modem. In one embodiment the power supply is an adaptive power supply that uses power from both... | 04/03/2001 |
| 6064693 | System and method for handling underrun of compressed speech frames due to unsynchronized receive and transmit clock rates A system and method for compensating for slight variances between a first rate at which a far end modem transmits a series of data frames to a near end modem and a second rate at which the near end modem requires reception of the series of data frames. Th... | 05/16/2000 |
| 6044108 | System and method for suppressing far end echo of voice encoded speech A system and method for performing far end echo suppression of compressed speech frames in a telecommunications system. The system comprises a client modem and a server modem coupled together via a communications path. A controller in the server modem rec... | 03/28/2000 |
| 6009151 | PC card modem with microphone and speaker connectivity The present invention comprises a PC Card adapted for insertion in a PC Card slot in a computer system. The PC Card includes a housing having a PC Card adapter having a plurality of input and output pins for coupling the housing to the PC Card slot and re... | 12/28/1999 |
| 5889845 | System and method for providing a remote user with a virtual presence to an office A system and method for enabling a remote user to maintain a virtual presence at a corporate office and behave substantially as if the user were physically present at the corporate office. First the remote user establishes a virtual presence connection at... | 03/30/1999 |
| 5870465 | Telephony adapter system for providing a user with a virtual presence to an office A telecommunications system which employs commodity simultaneous voice and data (SVD) modems to provide a user with a virtual presence to an office. A first telephony adapter is coupled between a user's home modem and a telephone. A second telephony adapt... | 02/09/1999 |
| 5483576 | Method and apparatus for communicating data over a radio transceiver with a modem A modem normally adapted for use on the PSTN communicates with a radio transceiver, typically a cellular telephone via an interface. The interface is coupled to the modem to communicate audible frequency computer data, control signals and status signals. ... | 01/09/1996 |
| 4597073 | Full-duplex split-speed data communication unit for remote DTE The disclosed data communication equipment (DCE) provides full-duplex, split-speed data communication over 2-wire dial-up telephone circuits, typically between a host processor and data terminal equipment (DTE). A telephone line interface includes low spe... | 06/24/1986 |
