Edward S Morgan

US Patent:

6657996, Dec 2, 2003

Filed:

Apr 21, 1999

Appl. No.:

09/295450

Inventors:

Zoran Mladenovic - Bethesda MD
Nagendra Kumar - McLean VA
Edward B. Morgan - Gaithersburg MD

Assignee:

Telogy Networks, Inc. - Dallas TX

International Classification:

H04L 1228

US Classification:

370356

Abstract:

A system and method for reducing or eliminating degradation in voice transmission quality resulting from repeated or sequential compression and decompression of voice packets over one or more packet networks. When a voice connection is established between two parties on separate packet networks, the signal is often passed through a PBX and/or over PSTN lines, with the occurrence of two tandem low-bit-rate codecs used to transfer the signal and introducing degradation of voice quality. This situation arises frequently in voice-over-packet applications. The situation can also arise when a call is forwarded from one place to another. The present invention reduces the degradation associated with the transport of voice data and thereby improving the voice quality by removing one of the tandem codecs.

US Patent:

6657997, Dec 2, 2003

Filed:

Jun 19, 2000

Appl. No.:

09/597895

Inventors:

David Lide - Rockville MD
Manoj Sindhwani - Herndon VA
William Mills - Montgomery Village MD
Zoran Mladenovic - Bethesda MD
Edward Morgan - Gaithersburg MD

Assignee:

Telogy Networks, Inc. - Dallas TX

International Classification:

H04L 1266

US Classification:

370356, 370392, 370474

Abstract:

The transport of ABCD bits in a digital packet network is facilitated by the inclusion of the ABCD bits into the RTP header of the digital packets. The ABCD bits are first placed in the unused bits of the RTP header. Redundancy of the previous ABCD bits, when applicable, is achieved by restricting the size of fields in the header to reserve space for redundant ABCD bits. The ABCD bits are placed in the reserved portions of restricted header fields.

US Patent:

20010024439, Sep 27, 2001

Filed:

May 29, 2001

Appl. No.:

09/867108

Inventors:

Edward Morgan - Gaithersburg MD, US
William Witowski - Gaithersburg MD, US
Joseph Crupi - North Potomac MD, US

International Classification:

H04L012/66
H04L012/28

US Classification:

370/352000, 370/400000, 370/376000, 709/230000

Abstract:

A telecommunications gateway allows packets to be sent over a TDM system and allows TDM traffic to be sent over a packet switched network. The gateway is a universal port that includes a plurality of Digital Signal Processors (DSPs) that are controlled by software. The controlling software determines what single function the DSP will perform over multiple channels. Each DSP handles multiple channels, however, each DSP is restricted such that all of its multiple channels are permitted to handle the telecommunications traffic according to one signaling protocol.

US Patent:

6240086, May 29, 2001

Filed:

Oct 15, 1999

Appl. No.:

9/419673

Inventors:

Edward Morgan - Gaithersburg MD
William Witowsky - Gaithersburg MD
Joseph Crupi - North Potomac MD

Assignee:

Texas Instruments Incorporated - Dallas TX

International Classification:

H04L 1246
H04L 1266
H04Q 1104

US Classification:

370352

Abstract:

A telecommunications gateway allows packets to be sent over a TDM system and allows TDM traffic to be sent over a packet switched network. The gateway is a universal port that includes a plurality of Digital Signal Processors (DSPs) that are controlled by software. The controlling software determines what single function the DSP will perform over multiple channels. Each DSP handles multiple channels, however, each DSP is restricted such that all of its multiple channels are permitted to handle the telecommunications traffic according to one signaling protocol.

US Patent:

61956368, Feb 27, 2001

Filed:

Feb 19, 1999

Appl. No.:

9/253017

Inventors:

Joseph A. Crupi - Germantown MD
Zoran Mladenovic - Germantown MD
Edward B. Morgan - Germantown MD
Bogdan R. Kosanovic - Germantown MD
Negendra Kumar - McLean VA

Assignee:

Texas Instruments Incorporated - Dallas TX

International Classification:

G10L 1900

US Classification:

704231

Abstract:

In a system in which user equipment is connected to a packet network and a speech recognition application server is also connected to the packet network for performing speech recognition on speech data from the user equipment, a speech recognition system selectively performs feature extraction at a user end before transmitting speech data to be recognized. The feature extraction is performed only for speech which is to be recognized.