ROBERT A MARTIN
Electrician at China Tree Dr, Dallas, TX

5056704, Oct 15, 1991

Feb 22, 1988

7/158797

Robert E. Martin - Dallas TX
Richard B. Martin - Carrollton TX

Tube Forming, Inc. - Carrollton TX

B23K 3102

2281734

A method and product for forming a joint between intersecting sections of tubing for the conduct of fluid flow. For forming the joints, there is included a section of primary tubing which is drilled or punched to form a radial aperture defining the location at which the joint is to be formed. To effect joinder with the primary tube, there is provided a secondary tube having an end that includes a pilot portion extending rearward from a recessed end plane and which merges with an integrally shaped saddle bead formed about the tube periphery. Inserting the pilot end of the secondary tube into the provided aperture of the primary tube enables the saddle bead to incur a contour overlay against the outside diameter of the primary tube for effecting lateral alignment therebetween while enabling joinder by welding, brazing or soldering. Also disclosed is the method of forming the secondary tube to produce a recessed end face/saddle bead combination by the use of upsetting swaging dies.

5027014, Jun 25, 1991

Mar 30, 1990

7/502471

Alan S. Bass - Plano TX
Stephen R. Schenck - McKinney TX
Robert C. Martin - Dallas TX

Texas Instruments Incorporated - Dallas TX

H03K 19092, H03K 19094, H03K 19086, H03K 19003

307475

There is disclosed a circuit and method for converting on/off logic signals from one medium to on/off signals useful in a different medium. The circuit is particularly adapted to translate from negative voltage levels to positive voltage levels. The circuit includes voltage control levels for precisely controlling voltage as a function of temperature, all while only using positive voltage levels on the conversion circuit.

4536664, Aug 20, 1985

Feb 16, 1983

6/467105

Robert C. Martin - Dallas TX

Texas Instruments Incorporated - Dallas TX

H03K 19092, H03K 19084, H03K 19013

307475

A high speed, noninverting circuit for providing an interface between transistor-transistor logic gates and Schottky transistor logic gates. In one embodiment the output of a TTL circuit is coupled through a Schottky diode to an emitter-follower whose input is Schottky clamped. The output of the emitter-follower is coupled to a constant current sink and to the cathode of a low barrier Schottky diode, the anode of which forms the STL-compatible output of the interface circuit. The present circuit thus performs a noninverting level translation with minimum propagation delay.

4364620, Dec 21, 1982

Sep 5, 1980

6/261236

Wayne A. Mulholland - Plano TX
Robert J. Martin - Dallas TX
David S. Wilson - Fort Collins CO
Carlos Esparza - Lewisville TX

Mostek Corporation - Carrollton TX

H01R 1300

339 17CF

A socket (10) is described for housing similar integrated circuits (#1, #2). The socket (10) comprises a center support (14) which includes integral end panels (14a, 14b). The center support further includes a plurality of upstanding separators (42, 44) which form a plurality of recesses (46, 48). Side panels (18, 20) are joined to the center support to form first and second chambers (23, 24). A bottom plate (16) is connected to the center support (14) and side panels (18, 20). A lead frame (22) is positioned within the first and second chambers to provide metallic strips within the recesses (46, 48). In certain of the recesses the metallic strips extend from corresponding recesses in the two chambers (23, 24) and connect to a respective socket lead (12). In other selected recesses a metallic strip extends directly to connect to a package lead (12) such that there is no direct connection between common recesses. The integrated circuits (#1, #2) are positioned within the chambers (23, 24) such that the leads of the integrated circuits (#1, #2) are received within the recesses (46, 48).

5612632, Mar 18, 1997

Nov 29, 1994

8/346562

Shivaling Mahant-Shetti - Los Angeles CA
Kevin Ovens - Plano TX
Clive Bittlestone - Allen TX
Robert C. Martin - Dallas TX
Robert J. Landers - Plano TX

Texas Instruments Incorporated - Dallas TX

H03K 19173, H03K 1900

326 46

A flip-flop includes a data storage node for driving an inverter (62) and transfer gate (64) combination to transfer data stored on the data node (60) to a master storage node (66). A master cross-coupled latch (68) has two cross-coupled inverters (72) and (74) connected thereto such that the master storage node (66) is only connected to one side of the latch (68). The data node (66) directly drives a slave stage comprised of an inverter (76) and transfer gate (78) which in turn drives a slave storage node (80). The slave storage node (80) is connected to a slave cross-coupled latch (82) comprised of cross-coupled inverters (86) and (88). The slave storage node (80) comprises the Q-output of the inverter. The data is transferred to storage node (66) on the negative going edge of the clock signal and latched thereto on the positive going edge of the clock signal. ON the positive going edge of the clock signal, data is transferred from the storage node (66) to the slave storage node (80) and then latched in the latch (82) on the negative going edge of the clock signal.

5544203, Aug 6, 1996

Oct 18, 1994

8/324856

Joseph A. Casasanta - Allen TX
Bernhard H. Andresen - Dallas TX
Yoshinori Satoh - Plano TX
Stanley C. Keeney - Dallas TX
Robert C. Martin - Dallas TX

Texas Instruments Incorporated - Dallas TX

H03D 324

375376

A device and method for reducing phase jitter in digital phase locked loop applications resulting in smaller clock skews between application specific integrated circuits (ASICs). Phase jitter is reduced by a fine resolution digital delay line (20) comprising both coarse stages (variable delay element 24) for rough/fast phase adjustment and fine stages (fine resolution delay element 22) for precise delay adjustment when phase lock is near.