Patents by Inventor Harinarayana Arimilli
Harinarayana Arimilli 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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Patent number: 8125888Abstract: This document discusses, among other things, a telephony network having a server configured to provide selected communication functions following failure of a primary server.Type: GrantFiled: August 23, 2006Date of Patent: February 28, 2012Assignee: Multi-Tech Systems, Inc.Inventors: Prasad V. Kandikonda, Harinarayana Arimilli
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Publication number: 20070047571Abstract: This document discusses, among other things, a telephony network having a server configured to provide selected communication functions following failure of a primary server.Type: ApplicationFiled: August 23, 2006Publication date: March 1, 2007Inventors: Prasad Kandikonda, Harinarayana Arimilli
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Patent number: 6928108Abstract: Updated operating code and parameters can be reprogrammed into a modem system with no disassembly of the modem hardware. The modem system includes a memory chip in which operating code and parameters are stored. Two control programs control the reprogramming of updated operating code. One of the control programs is designed for manufacturing and testing purposes. The other control program allows remote reprogramming of updated operating code or parameters from a remote location such as a customer site. A user can thus remotely upgrade system firmware with updates, bug fixes, enhancements or other new releases of system operating code by downloading the update over a phone line to a host PC and reprogramming the memory chip of the modem over the serial port from the host PC. The user can also remotely upgrade the modem system firmware by directly programming the memory chip of the modem without the assistance of the host PC. The modem system is portable, obtaining power from a standard 9 volt battery.Type: GrantFiled: October 10, 2001Date of Patent: August 9, 2005Assignee: Multi-Tech Systems, Inc.Inventors: Craig A. Nelson, Harinarayana Arimilli, Richard David Johnson
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Publication number: 20030152105Abstract: A data multiplexing network is described which multiplexes a plurality of asynchronous data channels with an asynchronous data stream representing compressed voice signals and/or facsimile signals onto a single synchronous data packet stream. The single synchronous data packet stream is then transmitted by a high speed statistical multiplexer over a composite link to a second site using a modified high-level synchronous data link control protocol with an overlay of an advanced priority statistical multiplexing algorithm. The asynchronous data channels and the compressed voice channel and/or facsimile signals are demultiplexed and reconstructed for sending to other asynchronous computer terminals and to a standard telephone or facsimile analog port at the second site, respectively. PBX trunk interfaces are also provided to allow PBX's to share the composite link between sites. Communication between the first site by voice or facsimile and the second site is transparent to the users.Type: ApplicationFiled: October 15, 2002Publication date: August 14, 2003Applicant: Multi-Tech Systems, Inc.Inventor: Harinarayana Arimilli
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Patent number: 6570891Abstract: A data multiplexing network is described which multiplexes a plurality of asynchronous data channels with an asynchronous data stream representing compressed voice signals and/or facsimile signals onto a single synchronous data packet stream. The single synchronous data packet stream is then transmitted by a high speed statistical multiplexer over a composite link to a second site using a modified high-level synchronous data link control protocol with an overlay of an advanced priority statistical multiplexing algorithm. The asynchronous data channels and the compressed voice channel and/or facsimile signals are demultiplexed and reconstructed for sending to other asynchronous computer terminals and to a standard telephone or facsimile analog port at the second site, respectively. PBX trunk interfaces are also provided to allow PBX's to share the composite link between sites. Communication between the first site by voice or facsimile and the second site is transparent to the users.Type: GrantFiled: March 27, 2000Date of Patent: May 27, 2003Assignee: Multi-Tech Systems, Inc.Inventor: Harinarayana Arimilli
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Patent number: 6526092Abstract: Updated opening code and parameters can be reprogrammed into a modem system with no disassembly of the modem hardware. The modem system includes a memory chip in which operating code and parameters are stored. Two control programs control the reprogramming of updated operating code. One of the control programs is designed for manufacturing and testing purposes. The other control program allows remote reprogramming of updated operating code or parameters from a remote location such as a customer site. A user can thus remotely upgrade system firmware with updates, bug fixes, enhancements or other new releases of system operating code by downloading the update over a phone line to a host PC and reprogramming the memory chip of the modem over the serial port from the host PC. The user can also remotely upgrade the modem system firmware by directly programing the memory chip of the modem without the assistance of the host PC. The modem system is portable, obtaining power from a standard 9 volt battery.Type: GrantFiled: January 6, 2000Date of Patent: February 25, 2003Assignee: Multi-Tech Systems, Inc.Inventors: Craig A. Nelson, Harinarayana Arimilli, Richard David Johnson
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Patent number: 6515984Abstract: A data multiplexing network is described which multiplexes a plurality of asynchronous data channels with an asynchronous data stream representing compressed voice signals and/or facsimile signals onto a single synchronous data packet stream. The single synchronous data packet stream is then transmitted by a high speed statistical multiplexer over a composite link to a second site using a modified high-level synchronous data link control protocol with an overlay of a priority statistical multiplexing algorithm. The asynchronous data channels and the compressed voice channel and/or facsimile signals are demultiplexed and reconstructed for sending to other asynchronous computer terminals and to a standard telephone or facsimile analog port at the second site, respectively. PBX trunk interfaces are also provided to allow PBX's to share the composite link between sites. Communication between the first site by voice or facsimile and the second site is transparent to the users.Type: GrantFiled: November 13, 2000Date of Patent: February 4, 2003Assignee: Multi-Tech Systems, Inc.Inventors: Harinarayana Arimilli, Ashish A. Thanawala, Vasant Kumar Kanchan
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Publication number: 20020114384Abstract: Updated operating code and parameters can be reprogrammed into a modem system with no disassembly of the modem hardware. The modem system includes a memory chip in which operating code and parameters are stored. Two control programs control the reprogramming of updated operating code. One of the control programs is designed for manufacturing and testing purposes. The other control program allows remote reprogramming of updated operating code or parameters from a remote location such as a customer site. A user can thus remotely upgrade system firmware with updates, bug fixes, enhancements or other new releases of system operating code by downloading the update over a phone line to a host PC and reprogramming the memory chip of the modem over the serial port from the host PC. The user can also remotely upgrade the modem system firmware by directly programming the memory chip of the modem without the assistance of the host PC. The modem system is portable, obtaining power from a standard 9 volt battery.Type: ApplicationFiled: October 10, 2001Publication date: August 22, 2002Applicant: Multi-Tech Systems, Inc.Inventors: Craig A. Nelson, Harinarayana Arimilli, Richard David Johnson
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Patent number: 6341143Abstract: Updated operating code and parameters can be reprogrammed into a modem system with no disassembly of the modem hardware. The modem system includes a memory chip in which operating code and parameters are stored. Two control programs control the reprogramming of updated operating code. One of the control programs is designed for manufacturing and testing purposes. The other control program allows remote reprogramming of updated operating code or parameters from a remote location such as a customer site. A user can thus remotely upgrade system firmware with updates, bug fixes, enhancements or other new releases of system operating code by downloading the update over a phone line to a host PC and reprogramming the memory chip of the modem over the serial port from the host PC. The user can also remotely upgrade the modem system firmware by directly programming the memory chip of the modem without the assistance of the host PC. The modem system is portable, obtaining power from a standard 9 volt battery.Type: GrantFiled: January 3, 1995Date of Patent: January 22, 2002Assignee: Multi-Tech Systems, Inc.Inventors: Craig A. Nelson, Harinarayana Arimilli, Richard David Johnson
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Patent number: 6275502Abstract: A data multiplexing network is described which multiplexes a plurality of asynchronous data channels with an asynchronous data stream representing compressed voice signals and/or facsimile signals onto a single synchronous data packet stream. The single synchronous data packet stream is then transmitted by a high speed statistical multiplexer over a composite link to a second site using a modified high-level synchronous data link control protocol with an overlay of an advanced priority statistical multiplexing algorithm. The asynchronous data channels and the compressed voice channel and/or facsimile signals are demultiplexed and reconstructed for sending to other asynchronous computer terminals and to a standard telephone or facsimile analog port at the second site, respectively. PBX trunk interfaces are also provided to allow PBX's to share the composite link between sites. Communication between the first site by voice or facsimile and the second site is transparent to the users.Type: GrantFiled: June 30, 1997Date of Patent: August 14, 2001Assignee: Multi-Tech Systems, Inc.Inventor: Harinarayana Arimilli
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Patent number: 6151333Abstract: A data multiplexing network is described which multiplexes a plurality of asynchronous data channels with an asynchronous data stream representing compressed voice signals and/or facsimile signals onto a single synchronous data packet stream. The single synchronous data packet stream is then transmitted by a high speed statistical multiplexer over a composite link to a second site using a modified high-level synchronous data link control protocol with an overlay of a priority statistical multiplexing algorithm. The asynchronous data channels and the compressed voice channel and/or facsimile signals are demultiplexed and reconstructed for sending to other asynchronous computer terminals and to a standard telephone or facsimile analog port at the second site, respectively. PBX trunk interfaces are also provided to allow PBX's to share the composite link between sites.Type: GrantFiled: July 29, 1997Date of Patent: November 21, 2000Assignee: Multi-Tech Systems, Inc.Inventors: Harinarayana Arimilli, Ashish A. Thanawala, Vasant Kumar Kanchan
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Patent number: 5812534Abstract: A personal communications system enables the operator to simultaneously transmit voice and data communication to a remote site. The personal communications system is equipped with two telephone line interfaces to allow connection over a communications link between two remote sites. The personal communications system incorporates advanced priority statistical multiplexing of non-time-critical data with time-critical data over the communications link to increase channel throughput without a reduction in quality of the time-critical data. The personal communications system may be networked in different topological configurations to enable conferencing in a variety of time-critical and non-time-critical communications.Type: GrantFiled: August 16, 1996Date of Patent: September 22, 1998Assignee: Multi-Tech Systems, Inc.Inventors: Jeffrey P. Davis, Harinarayana Arimilli, Raghu N. Sharma
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Patent number: 5757801Abstract: A data multiplexing network is described which multiplexes a plurality of asynchronous data channels with an asynchronous data stream representing compressed voice signals and/or facsimile signals onto a single synchronous data packet stream. The single synchronous data packet stream is then transmitted by a high speed statistical multiplexer over a composite link to a second site using a modified high-level synchronous data link control protocol with an overlay of an advanced priority statistical multiplexing algorithm. The asynchronous data channels and the compressed voice channel and/or facsimile signals are demultiplexed and reconstructed for sending to other asynchronous computer terminals and to a standard telephone or facsimile analog port at the second site, respectively. PBX trunk interfaces are also provided to allow PBXs to share the composite link between sites. Communication between the first site by voice or facsimile and the second site is transparent to the users.Type: GrantFiled: November 2, 1994Date of Patent: May 26, 1998Assignee: Multi-Tech Systems, Inc.Inventor: Harinarayana Arimilli
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Patent number: 5682386Abstract: A data multiplexing network is described which multiplexes a plurality of asynchronous data channels with an asynchronous data stream representing compressed voice signals and/or facsimile signals onto a single synchronous data packet stream. The single synchronous data packet stream is then transmitted by a high speed statistical multiplexer over a composite link to a second site using a modified high-level synchronous data link control protocol with an overlay of a priority statistical multiplexing algorithm. The asynchronous data channels and the compressed voice channel and/or facsimile signals are demultiplexed and reconstructed for sending to other asynchronous computer terminals and to a standard telephone or facsimile analog port at the second site, respectively. PBX trunk interfaces are also provided to allow PBX's to share the composite link between sites.Type: GrantFiled: April 19, 1994Date of Patent: October 28, 1997Assignee: Multi-Tech Systems, Inc.Inventors: Harinarayana Arimilli, Ashish A. Thanawala, Vasant Kumar Kanchan