Norayda N Humphrey

US Patent:

6804243, Oct 12, 2004

Filed:

Feb 18, 2000

Appl. No.:

09/507383

Inventors:

Norayda N. Humphrey - McKinney TX
Magnus G Karlsson - McKinney TX
Gregory Lee Christison - McKinney TX

Assignee:

Texas Instruments Incorporated - Dallas TX

International Classification:

H04L 1256

US Classification:

3703951, 370401, 370428

Abstract:

A Universal Serial Bus (USB) modem ( ) in which reassembly and segmentation operations are performed outside of the host computer ( ) is disclosed. A USB interface device ( ) is coupled to a digital signal processor (DSP) ( ) in the modem ( ), and contains a shared memory ( ) in which bulk endpoints ( ) are established, at which ATM packet header and payload data are stored prior to transmission. An ATM transmit controller ( ) retrieves the header portion of the ATM packet from a transmit endpoint ( ) and stores the information in registers ( ) in the ATM transmit controller ( ). A four-byte ATM cell header is then transmitted to byte buffers ( ) and to the DSP ( ) for transmission over the communications facility. Afterwards, payload data is retrieved from the transmit endpoint ( ) in shared memory ( ), and forwarded to byte buffers ( ) for transmission.

US Patent:

6915360, Jul 5, 2005

Filed:

Apr 6, 2001

Appl. No.:

09/827808

Inventors:

Magnus Karlsson - McKinney TX, US
Gregory Lee Christison - McKinney TX, US
Norayda Humphrey - McKinney TX, US

Assignee:

Texas Instruments Incorporated - Dallas TX

International Classification:

G06F013/18
G06F012/00

US Classification:

710 40, 711151, 710 39, 710 55

Abstract:

The present invention provides an apparatus and system for buffering data in a communication network with an arranged priority which enables traffic shaping. A cell buffer unit () is arranged with a plurality of queues () configured to store PDUs on-chip and off-chip. There are associated queues both on-chip and off-chip for each priority queue. A cell buffer controller () forwards PDUs to a predetermined priority queue and manages the transfer of PDUs off-chip when a priority queue on-chip is fully occupied. The controller () also manages the transfer of PDUs from the off-chip queue when the on-chip priority queue becomes less than fully occupied.

US Patent:

6931012, Aug 16, 2005

Filed:

Apr 6, 2001

Appl. No.:

09/827648

Inventors:

Magnus Karlsson - McKinney TX, US
Gregory Lee Christison - McKinney TX, US
Norayda Humphrey - McKinney TX, US

Assignee:

Texas Instruments Incorporated - Dallas TX

International Classification:

H04L012/433

US Classification:

37039531

Abstract:

The present invention provides an apparatus and system for high speed end-to-end telecommunication traffic using an Asynchronous Transfer Mode (ATM) architecture for convergence of video, data and voice in an SOHO application using a DSL router. An ATM processor () enables traffic shaping, and operation and maintenance processing within a single module. The ATM processor () further includes a processor () which executes firmware from a program memory (). A register block () is provided for communicating setup and teardown notification, and OAM configuration to the processor () and a connection state RAM () provides for communicating connection configuration in which this information is used by the processor () when performing the functions of switching, QoS, and OAM. Transmit scheduler hardware () is provided for the scheduling of ATM cell transmission and is configured by the processor ().

US Patent:

6961340, Nov 1, 2005

Filed:

Apr 6, 2001

Appl. No.:

09/827660

Inventors:

Magnus Karlsson - McKinney TX, US
Gregory Lee Christison - McKinney TX, US
Norayda Humphrey - McKinney TX, US

Assignee:

Texas Instruments Incorporated - Dallas TX

International Classification:

H04L012/28

US Classification:

3703956, 370389

Abstract:

The present invention provides an apparatus, system and method for receiving asynchronous transfer mode (ATM) data cells on an ATM adaptation layer (AAL) configured connection within an ATM system comprising a digital signal processor (DSP) sub-system () and a host processor (). The receiver interfaces directly with the DSP sub-system () (which converts the digitized voice samples into voice signals) and the host processor () (which performs AAL2 signaling and layer management functions). The receiver filters the AAL2 signaling and management packets from the AAL2 voice packets using a host programmable CID filter () and UUI filter (). A match from either filter () enables the packet to be forwarded to the host processor (). If no match is made in either filter (), then a look-up is performed in a receive CID look-up table and the packet is forwarded to the DSP sub-system () on a look-up match.

US Patent:

6990108, Jan 24, 2006

Filed:

Apr 6, 2001

Appl. No.:

09/827829

Inventors:

Magnus Karlsson - McKinney TX, US
Gregory Lee Christison - McKinney TX, US
Norayda Humphrey - McKinney TX, US

Assignee:

Texas Instruments Incorporated - Dallas TX

International Classification:

H04L 12/28
H04L 12/56

US Classification:

3703956, 37039562, 37039563, 37039564, 37039565, 3703957, 370463, 370396397, 370399, 3703951

Abstract:

The present invention provides a unitary mechanism for high speed end-to-end telecommunication traffic using an Asynchronous Transfer Mode (ATM) architecture for convergence of video, data and voice in an SOHO application using a DSL router. An ATM module () for convergence of the telecommunications traffic includes an ATM processor () configured to perform QoS, OAM processing and switching in an ATM system. Function modules () and data ports () are configurable to transceive data, voice and video traffic in which the traffic is packetized in ATM data cells.

US Patent:

7215670, May 8, 2007

Filed:

Feb 18, 2000

Appl. No.:

09/507249

Inventors:

Magnus G. Karlsson - McKinney TX, US
Norayda N. Humphrey - McKinney TX, US
Gregory Lee Christison - McKinney TX, US

Assignee:

Texas Instruments Incorporated - Dallas TX

International Classification:

H04L 12/28
H04L 12/56

US Classification:

3703951, 370474

Abstract:

A Universal Serial Bus (USB) modem () in which reassembly and segmentation operations are performed outside of the host computer () is disclosed. A USB interface device () is coupled to a digital signal processor (DSP) () in the modem (), and contains a shared memory () in which bulk endpoints () are established, at which received ATM cell payload data may be stored. An ATM receive controller () is provided in the USB interface device (), which receives each ATM cell from the DSP () and interrogates the ATM cell header to determine which, if any, virtual connection the cell corresponds. The ATM receive controller () then forwards the payload portion of the ATM cell, but not the ATM cell header, to the endpoint () corresponding to the virtual connection to which the ATM cell is directed. The disclosed ATM receive controller () also includes logic () for calculating a cyclic redundancy check value over the payload portion of the ATM cells that make up an ATM packet.

US Patent:

7269175, Sep 11, 2007

Filed:

Apr 6, 2001

Appl. No.:

09/827816

Inventors:

Magnus Karlsson - Erie CO, US
Gregory Lee Christison - Fairview TX, US
Norayda Humphrey - McKinney TX, US

Assignee:

Texas Instruments Incorporated - Dallas TX

International Classification:

H04L 12/28
H04L 12/56

US Classification:

3703956, 370389, 37039564, 37039565, 37039561

Abstract:

The present invention provides an apparatus, system and method for transmitting asynchronous transfer mode (ATM) data cells on an ATM adaptation layer (AAL) configured connection within an ATM system comprising a digital signal processor (DSP) sub-system () and a host processor (). The transmitter interfaces directly with the DSP sub-system () (which converts the digitized voice samples into voice signals) and the host processor () (which performs AAL2 signaling and layer management functions). The transmitter is configured to interleave AAL2 voice packets from the DSP sub-system () and signaling and management packets from the host processor () on an ATM connection. Data is fetched by DMA(s) (). A channel look-up table uses the DSP assigned voice channel as an index into the table to map a voice channel to the ATM connection.

US Patent:

6760333, Jul 6, 2004

Filed:

Feb 18, 2000

Appl. No.:

09/507314

Inventors:

Michael J. Moody - McKinney TX
Magnus G. Karlsson - McKinney TX
Norayda N. Humphrey - McKinney TX
Gregory Lee Christison - McKinney TX

Assignee:

Texas Instruments Incorporated - Dallas TX

International Classification:

H04L 1228

US Classification:

3703951, 370465, 375222

Abstract:

A Universal Serial Bus (USB) modem ( ) having two operating modes, namely Digital Subscriber Loop (DSL) mode and a voice-band mode, is disclosed. A USB interface device ( ) is coupled to a digital signal processor (DSP) ( ) and contains a shared memory ( ) in which USB endpoints are established for data communication. In the DSL mode, an ATM receive controller ( ) receives each ATM cell from the DSP ( ) and interrogates the ATM cell header to determine the virtual connection to the corresponding cell, and then forwards the payload portion of the ATM cell, but not the ATM cell header. In the voice-band mode, the ATM receive controller ( ) and ATM transmit controller ( ) operate in a simple streaming mode. A host interface controller ( ) is also provided, by way of which facsimile communications are carried out simultaneously with DSL communications, or in separate sessions relative to voice-band data communications.