Patents by Inventor Robert C. Suffern
Robert C. Suffern has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Host computer digital signal processing system for communicating over voice-grade telephone channels
Patent number: 7519168Abstract: A conventional computer is coupled to an analog telephone transmission link by means of an analog/digital conversion interface adapter. Modem transmission is accomplished by performing the modulation and demodulation functions digitally in the computer's existing processor which executes programs which transfer data between the computer's memory and the interface adapter. Using the same interface adapter and existing processor, the arrangement may be used to send and receive images in the form of standard V.29 format facsimile data, to send and receive data operating as a synchronous IBM 3270 compatible terminal device, or to record and play back conventional voice transmissions rather than data to implement a telephone answering, voice message handling, and telemarketing systems.Type: GrantFiled: November 18, 2003Date of Patent: April 14, 2009Assignee: 3Com CorporationInventors: Robert C. Suffern, Andrew L. Norrell -
Host computer digital signal processing system for communicating over voice-grade telephone channels
Publication number: 20040096045Abstract: A conventional computer is coupled to an analog telephone transmission link by means of an analog/digital conversion interface adapter. Modem transmission is accomplished by performing the modulation and demodulation functions digitally in the computer's existing processor which executes programs which transfer data between the computer's memory and the interface adapter. Using the same interface adapter and existing processor, the arrangement may be used to send and receive images in the form of standard V.29 format facsimile data, to send and receive data operating as a synchronous IBM 3270 compatible terminal device, or to record and play back conventional voice transmissions rather than data to implement a telephone answering, voice message handling, and telemarketing systems.Type: ApplicationFiled: November 18, 2003Publication date: May 20, 2004Applicant: 3Com CorporationInventors: Robert C. Suffern, Andrew L. Norrell -
Host computer digital signal processing system for communicating over voice-grade telephone channels
Patent number: 6693997Abstract: A conventional computer is coupled to an analog telephone transmission link by means of an analog/digital conversion interface adapter. Modem transmission is accomplished by performing the modulation and demodulation functions digitally in the computer's existing processor which executes programs which transfer data between the computer's memory and the interface adapter. Using the same interface adapter and existing processor, the arrangement may be used to send and receive images in the form of standard V.29 format facsimile data, to send and receive data operating as a synchronous IBM 3270 compatible terminal device, or to record and play back conventional voice transmissions rather than data to implement a telephone answering, voice message handling, and telemarketing systems.Type: GrantFiled: June 30, 2000Date of Patent: February 17, 2004Assignee: 3Com CorporationInventors: Robert C. Suffern, Andrew L. Norrell -
Patent number: 6636519Abstract: Apparatus and method for enabling bilateral transmission of digital data between a local area network and telephone company networks employing both analog and digital telephone lines. A modem modulates signals responsive to signals from a local area network representing an outgoing call to form digital telephone signals suitable for transmission by a telephone line and suitable for demodulation by receiving analog modems. A circuit switched time division multiplex bus transmits the digital telephone signals to the telephone line. The modem also demodulates incoming digital telephone signals to form digital network bus signals divided into packets. A packet bus transmits the digital network bus signals to a network interface which processes the signals and transmits them to the local area network.Type: GrantFiled: June 14, 1999Date of Patent: October 21, 2003Assignee: UT Starcom, Inc.Inventors: Dale M. Walsh, Andrew L. Norrell, Donald C. Balton, Terrel L. Jones, Marc S. Baum, Robert C. Suffern, Christopher R. Hansen, Jeffrey E. Herman, Thanh Q. Ngo, Daniel L. Schoo, Gregory Warren Goodknight
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Host computer digital signal processing system for communicating over voice-grade telephone channels
Patent number: 6097794Abstract: A conventional computer is coupled to an analog telephone transmission link by means of an analog/digital conversion interface adapter. Modem transmission is accomplished by performing the modulation and demodulation functions digitally in the computer's existing processor which executes programs which transfer data between the computer's memory and the interface adapter. Using the same interface adapter and existing processor, the arrangement may be used to send and receive images in the form of standard V.29 format facsimile data, to send and receive data operating as a synchronous IBM 3270 compatible terminal device, or to record and play back conventional voice transmissions rather than data to implement a telephone answering, voice message handling, and telemarketing systems.Type: GrantFiled: February 8, 1999Date of Patent: August 1, 2000Assignee: U.S. Robotics Access Corp.Inventors: Robert C. Suffern, Andrew L. Norrell -
Patent number: 5912888Abstract: Apparatus and method for enabling bilateral transmission of digital data between a local area network and telephone company networks employing both analog and digital telephone lines. A modem modulates signals responsive to signals from a local area network representing an outgoing call to form digital telephone signals suitable for transmission by a telephone line and suitable for demodulation by receiving analog modems. A circuit switched time division multiplex bus transmits the digital telephone signals to the telephone line. The modem also demodulates incoming digital telephone signals to form digital network bus signals divided into packets. A packet bus transmits the digital network bus signals to a network interface which processes the signals and transmits them to the local area network.Type: GrantFiled: August 27, 1997Date of Patent: June 15, 1999Assignee: U.S. Robotics Access Corp.Inventors: Dale M. Walsh, Andrew L. Norrell, Donald C. Balton, Terrel L. Jones, Marc S. Baum, Robert C. Suffern, Christopher R. Hansen, Jeffrey E. Herman, Thanh Q. Ngo, Daniel L. Schoo, Gregory Warren Goodknight
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Host computer digital signal processing system for communicating over voice-grade telephone channels
Patent number: 5872836Abstract: A conventional computer is coupled to an analog telephone transmission link by means of an analog/digital conversion interface adapter. Modem transmission is accomplished by performing the modulation and demodulation functions digitally in the computer's existing processor which executes programs which transfer data between the computer's memory and the interface adapter. Using the same interface adapter and existing processor, the arrangement may be used to send and receive images in the form of standard V.29 format facsimile data, to send and receive data operating as a synchronous IBM 3270 compatible terminal device, or to record and play back conventional voice transmissions rather than data to implement a telephone answering, voice message handling, and telemarketing systems.Type: GrantFiled: October 10, 1997Date of Patent: February 16, 1999Assignee: 3Com CorporationInventors: Robert C. Suffern, Andrew L. Norrell -
Patent number: 5841842Abstract: A method of processing incoming digital telephone calls from remotely located call originators which are destined for receipt by a host computer system. The host computer system is linked to the telephone network by a network access server. The call originators may be any type of data terminal, such as a personal computer or a credit card swipe, which is connected to a modem. The network access server extracts control signals imparted onto the telephone line and correlates the control signals with particular communications, routing or applications protocols identified with the call originators. The modem in the network access server which answers the call is configured during the call connect process and placed in a compatible format for the communications protocol of the incoming call. This dynamic custom configuration of the modem reduces the overall telephone call connection and processing time.Type: GrantFiled: June 13, 1996Date of Patent: November 24, 1998Assignee: U.S. Robotics Access Corp.Inventors: Marc S. Baum, Robert C. Suffern, Donald Balton, Daniel L. Schoo
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Patent number: 5832277Abstract: A processor on an add-on card that arbitrates demand on a memory unit on the add-on card. The processor and memory unit are used for the underlying functionality of the add-on card. The processor determines an appropriate time to allow interface operations to the memory unit when the memory unit is not already being accessed for the underlying functionality of the card. By using the processor and memory unit on the add-on card for interface operations to the host computer, the add-on interface circuitry on the add-on card can be minimized and simplified.Type: GrantFiled: March 8, 1996Date of Patent: November 3, 1998Assignee: 3 Com CorporationInventors: Ronald J. Sullivan, Brett W. Chaveriat, Robert C. Suffern, Khodor S. Elnashar
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Patent number: 5761281Abstract: A method of processing incoming digital telephone calls from remotely located call originators which are destined for receipt by a host computer system. The host computer system is linked to the telephone network by a network access server. The call originators may be any type of data terminal, such as a personal computer or a credit card swipe, which is connected to a modem. The network access server extracts control signals imparted onto the telephone line and correlates the control signals with particular communications, routing or applications protocols identified with the call originators. The modem in the network access server which answers the call is configured during the call connect process and placed in a compatible format for the communications protocol of the incoming call. This dynamic custom configuration of the modem reduces the overall telephone call connection and processing time.Type: GrantFiled: July 30, 1996Date of Patent: June 2, 1998Assignee: 3Com CorporationInventors: Marc S. Baum, Robert C. Suffern, Donald Balton, Daniel L. Schoo, Peter P. Jankus, Lih-Shyng Tzeng, Terrel Jones
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Host computer digital signal processing system for communicating over voice-grade telephone channels
Patent number: 5724413Abstract: A conventional computer is coupled to an analog telephone transmission link by an analog/digital conversion interface adapter. Modem transmission is accomplished by performing the modulation and demodulation functions digitally in the computer's existing processor which executes programs which transfer data between the computer's memory and the interface adapter. Using the same interface adapter and existing processor, the arrangement may be used to send and receive images in the form of standard V.29 format facsimile data, to send and receive data operating as a synchronous IBM 3270 compatible terminal device, or to record and play back conventional voice transmissions rather than data to implement a telephone answering, voice message handling, and telemarketing systems.Type: GrantFiled: June 6, 1995Date of Patent: March 3, 1998Assignee: U.S. Robotics, Inc.Inventors: Robert C. Suffern, Andrew L. Norrell -
Host computer digital signal processing system for communicating over voice-grade telephone channels
Patent number: 5646983Abstract: A conventional computer is coupled to an analog telephone transmission link by an analog/digital conversion interface adapter. Modem transmission is accomplished by performing the modulation and demodulation functions digitally in the computer's existing processor which executes programs which transfer data between the computer's memory and the interface adapter. Using the same interface adapter and existing processor, the arrangement may be used to send and receive images in the form of standard V.29 format facsimile data, to send and receive data operating as a synchronous IBM 3270 compatible terminal device, or to record and play back conventional voice transmissions rather than data to implement a telephone answering, voice message handling, and telemarketing systems.Type: GrantFiled: March 25, 1993Date of Patent: July 8, 1997Assignee: U.S. Robotics Access Corp.Inventors: Robert C. Suffern, Andrew L. Norrell -
Patent number: 5577105Abstract: A method of processing incoming digital telephone calls from remotely located call originators which are destined for receipt by a host computer system. The host computer system is linked to the telephone network by a network access server. The call originators may be any type of data terminal, such as a personal computer or a credit card swipe, which is connected to a modem. The network access server extracts control signals imparted onto the telephone line and correlates the control signals with particular communications, routing or applications protocols identified with the call originators. The modem in the network access server which answers the call is configured during the call connect process and placed in a compatible format for the communications protocol of the incoming call. This dynamic custom configuration of the modem reduces the overall telephone call connection and processing time.Type: GrantFiled: March 11, 1994Date of Patent: November 19, 1996Assignee: U.S. Robotics, Inc.Inventors: Marc S. Baum, Robert C. Suffern, Donald Balton, Daniel L. Schoo, Peter P. Jankus, Lih-Shyng Tzeng, Terrel Jones
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Patent number: 5528595Abstract: Apparatus and method for enabling bilateral transmission of digital data between a local area network and telephone company networks employing both analog and digital telephone lines. A modem modulates signals responsive to signals from a local area network representing an outgoing call to form digital telephone signals suitable for transmission by a telephone line and suitable for demodulation by receiving analog modems. A circuit switched time division multiplex bus transmits the digital telephone signals to the telephone line. The modem also demodulates incoming digital telephone signals to form digital network bus signals divided into packets. A packet bus transmits the digital network bus signals to a network interface which processes the signals and transmits them to the local area network.Type: GrantFiled: November 14, 1995Date of Patent: June 18, 1996Assignee: U.S. Robotics, Inc.Inventors: Dale M. Walsh, Andrew L. Norrell, Donald C. Balton, Terrel L. Jones, Marc S. Baum, Robert C. Suffern, Christopher R. Hansen, Jeffery E. Herman, Thanh Q. Ngo
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Patent number: 5008901Abstract: A modem for connecting data terminal equipment (DTE) to a remote DTE via a general switched telephone network or leased lines at data rates of 300, 1200 and 2400 bps using standard modulation techniques, and additonally providing virtual full duplex transmission capability at 9600 bps using trellis code modulation (TCM). The high-speed 9600 bps path is implemented by asymmetrical frequency division of the available bandwidth into a high speed, wideband forward channel (9600 bps) and a low speed, narrowband backchannel (300 bps). The high speed transmitting channel is assigned to that modem having the greatest data demand and the direction is dynamically reversed whenever the amount of data awaiting transmission over the low speed channel exceeds a predetermined maximum backlog, provided that a direction reversal has not taken place for at least a specified minimum interval during which use of the forward channel is guaranteed.Type: GrantFiled: October 29, 1987Date of Patent: April 16, 1991Assignee: U.S. Robotics, Inc.Inventors: Clifford H. Wallach, Robert C. Suffern, Dale M. Walsh