Patents by Inventor James N. Hall

James N. Hall 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).

  • Patent number: 9709802
    Abstract: In described examples, a DMD includes an array of micromirror pixels. Each pixel includes a right electrode on a first side of the pixel, a left electrode on a second side of the pixel adjacent the first side, and a cantilevered beam supporting a mirror. The cantilever beam tilts on two axes of translation: pitch and roll. The mirror has: a first landed position (on a first and second spring tip) over the right electrode; and a second landed position (on the first and a third spring tip) over the left electrode, such that the first landed position and the second landed positions are 90° apart. In transitioning from the first landed position to the second landed position, the mirror maintains contact with the first spring tip while rolling from the second spring tip to the third spring tip.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: July 18, 2017
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: William C. McDonald, James N. Hall, Mark F. Reed, Lance W. Barron, Terry A. Bartlett, Divyanshu Agrawal
  • Publication number: 20160266377
    Abstract: In described examples, a DMD includes an array of micromirror pixels. Each pixel includes a right electrode on a first side of the pixel, a left electrode on a second side of the pixel adjacent the first side, and a cantilevered beam supporting a mirror. The cantilever beam tilts on two axes of translation: pitch and roll. The mirror has: a first landed position (on a first and second spring tip) over the right electrode; and a second landed position (on the first and a third spring tip) over the left electrode, such that the first landed position and the second landed positions are 90° apart. In transitioning from the first landed position to the second landed position, the mirror maintains contact with the first spring tip while rolling from the second spring tip to the third spring tip.
    Type: Application
    Filed: May 20, 2016
    Publication date: September 15, 2016
    Inventors: William C. McDonald, James N. Hall, Mark F. Reed, Lance W. Barron, Terry A. Bartlett, Divyanshu Agrawal
  • Patent number: 9348136
    Abstract: A DMD having an array of micromirror pixels wherein each pixel comprises a right electrode on a first side of the pixel, a left electrode on a second side of the pixel adjacent the first side and a cantilevered beam supporting a mirror. The cantilever beam tilts on two axes of translation: pitch and roll. The mirror has a first landed position (on a first and second spring tip) over the right electrode and a second landed position (on the first and a third spring tip) over the left electrode such that the first landed position and the second landed positions are 90° apart. In transitioning from the first landed position to the second landed position, the mirror maintains contact with the first spring tip while rolling from the second spring tip to the third spring tip.
    Type: Grant
    Filed: May 13, 2014
    Date of Patent: May 24, 2016
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: William C. McDonald, James N. Hall, Mark F. Reed, Lance W. Barron, Terry A. Bartlett, Divyanshu Agrawal
  • Publication number: 20150070749
    Abstract: A DMD having an array of micromirror pixels wherein each pixel comprises a right electrode on a first side of the pixel, a left electrode on a second side of the pixel adjacent the first side and a cantilevered beam supporting a mirror. The cantilever beam tilts on two axes of translation: pitch and roll. The mirror has a first landed position (on a first and second spring tip) over the right electrode and a second landed position (on the first and a third spring tip) over the left electrode such that the first landed position and the second landed positions are 90° apart. In transitioning from the first landed position to the second landed position, the mirror maintains contact with the first spring tip while rolling from the second spring tip to the third spring tip.
    Type: Application
    Filed: May 13, 2014
    Publication date: March 12, 2015
    Inventors: William C. McDonald, James N. Hall, Mark F. Reed, Lance W. Barron, Terry A. Bartlett, Divyanshu Agrawal
  • Patent number: 8975722
    Abstract: A MEMS logic device comprising agate which pivots on a torsion hinge, two conductive channels on the gate, one on each side of the torsion hinge, source and drain landing pads under the channels, and two body bias elements under the gate, one on each side of the torsion hinge, so that applying a threshold bias between one body bias element and the gate will pivot the gate so that one channel connects the respective source and drain landing pad, and vice versa. An integrated circuit with MEMS logic devices on the dielectric layer, with the source and drain landing pads connected to metal interconnects of the integrated circuit. A process of forming the MEM switch.
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: March 10, 2015
    Assignee: Texas Instruments Incorporated
    Inventors: James N. Hall, Lance W. Barron, Cuiling Gong
  • Publication number: 20140252419
    Abstract: A MEMS logic device comprising agate which pivots on a torsion hinge, two conductive channels on the gate, one on each side of the torsion hinge, source and drain landing pads under the channels, and two body bias elements under the gate, one on each side of the torsion hinge, so that applying a threshold bias between one body bias element and the gate will pivot the gate so that one channel connects the respective source and drain landing pad, and vice versa. An integrated circuit with MEMS logic devices on the dielectric layer, with the source and drain landing pads connected to metal interconnects of the integrated circuit. A process of forming the MEM switch.
    Type: Application
    Filed: May 20, 2014
    Publication date: September 11, 2014
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventors: James N. Hall, Lance W. Barron, Cuiling Gong
  • Patent number: 8729657
    Abstract: A MEMS logic device comprising agate which pivots on a torsion hinge, two conductive channels on the gate, one on each side of the torsion hinge, source and drain landing pads under the channels, and two body bias elements under the gate, one on each side of the torsion hinge, so that applying a threshold bias between one body bias element and the gate will pivot the gate so that one channel connects the respective source and drain landing pad, and vice versa. An integrated circuit with MEMS logic devices on the dielectric layer, with the source and drain landing pads connected to metal interconnects of the integrated circuit. A process of forming the MEM switch.
    Type: Grant
    Filed: October 8, 2012
    Date of Patent: May 20, 2014
    Assignee: Texas Instruments Incorporated
    Inventors: James N. Hall, Lance W. Barron, Cuiling Gong
  • Patent number: 8421815
    Abstract: A system and method for displaying an image are provided. In one embodiment, the method includes receiving a data stream representing a frame of an image. The data stream may indicate a first color pixel cluster corresponding to a first color and a second color pixel cluster corresponding to a second color. The first color pixel cluster and the second color pixel cluster may be displayed. The first color pixel cluster may be different from the second color pixel cluster.
    Type: Grant
    Filed: August 6, 2012
    Date of Patent: April 16, 2013
    Assignee: Texas Instruments Incorporated
    Inventors: Andrew G. Huibers, Michael T. Davis, Henry W. Neal, James N. Hall
  • Publication number: 20120299952
    Abstract: A system and method for displaying an image are provided. In one embodiment, the method includes receiving a data stream representing a frame of an image. The data stream may indicate a first color pixel cluster corresponding to a first color and a second color pixel cluster corresponding to a second color. The first color pixel cluster and the second color pixel cluster may be displayed. The first color pixel cluster may be different from the second color pixel cluster.
    Type: Application
    Filed: August 6, 2012
    Publication date: November 29, 2012
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Andrew G. Huibers, Michael T. Davis, Henry W. Neal, James N. Hall
  • Patent number: 8237731
    Abstract: In accordance with the teachings of the present disclosure, a system and method for displaying an image are provided. In one embodiment, the method includes receiving a data stream representing a frame of an image. The data stream may indicate a first color pixel cluster corresponding to a first color and a second color pixel cluster corresponding to a second color. The first color pixel cluster and the second color pixel cluster may be displayed. The first color pixel cluster may be different from the second color pixel cluster.
    Type: Grant
    Filed: September 23, 2008
    Date of Patent: August 7, 2012
    Assignee: Texas Instruments Incorporated
    Inventors: Andrew G. Huibers, Michael T. Davis, Henry W. Neal, James N. Hall
  • Patent number: 7919775
    Abstract: A method of operating a semiconductor device, a semiconductor device and a digital micromirror system are presented. In an embodiment, the semiconductor device comprises a grounded substrate, a memory array, and a reset driver. The memory array may be isolated from the grounded substrate with a buried layer. The set of voltages of the memory array may be shifted with respect to a reset voltage. The reset driver may drive the reset voltage and the reset driver may have at least one extended drain transistor in the grounded substrate.
    Type: Grant
    Filed: May 27, 2009
    Date of Patent: April 5, 2011
    Assignee: Texas Instruments Incorporated
    Inventors: James D. Huffman, James N. Hall
  • Patent number: 7847795
    Abstract: In accordance with the teachings of the present disclosure, a method and system for controlling spatial light modulator buses are provided. In accordance with one embodiment of the present disclosure, a bus controller includes a configurable bus interface having first and second modes of operation. The first mode of operation is configured to interface with a single spatial light modulator. The second mode of operation is configured to interface in parallel with a plurality of spatial light modulators. In accordance with another embodiment of the present disclosure, a method of controlling a bus includes configuring a bus interface of a bus controller to interface in parallel with a plurality of digital micromirror devices.
    Type: Grant
    Filed: May 25, 2007
    Date of Patent: December 7, 2010
    Assignee: Texas Instruments Incorporated
    Inventors: Hector C. Rodriguez, James N. Hall
  • Publication number: 20100073397
    Abstract: In accordance with the teachings of the present disclosure, a system and method for displaying an image are provided. In one embodiment, the method includes receiving a data stream representing a frame of an image. The data stream may indicate a first color pixel cluster corresponding to a first color and a second color pixel cluster corresponding to a second color. The first color pixel cluster and the second color pixel cluster may be displayed. The first color pixel cluster may be different from the second color pixel cluster.
    Type: Application
    Filed: September 23, 2008
    Publication date: March 25, 2010
    Applicant: Texas Instrument Incorporated
    Inventors: Andrew G. Huibers, Michael T. Davis, Henry W. Neal, James N. Hall
  • Publication number: 20080291185
    Abstract: In accordance with the teachings of the present disclosure, a method and system for controlling spatial light modulator buses are provided. In accordance with one embodiment of the present disclosure, a bus controller includes a configurable bus interface having first and second modes of operation. The first mode of operation is configured to interface with a single spatial light modulator. The second mode of operation is configured to interface in parallel with a plurality of spatial light modulators. In accordance with another embodiment of the present disclosure, a method of controlling a bus includes configuring a bus interface of a bus controller to interface in parallel with a plurality of digital micromirror devices.
    Type: Application
    Filed: May 25, 2007
    Publication date: November 27, 2008
    Applicant: TEXAS INSTRUMENTS, INC.
    Inventors: Hector C. Rodriguez, James N. Hall
  • Patent number: 6266749
    Abstract: A circuit for measuring the access time of a memory circuit. The circuit includes a storage element 908 having an input terminal, an output terminal, and a clock terminal. The input terminal of the storage element is coupled to an output of the memory circuit 900. A clock signal source 906 is coupled to the clock terminal of the storage element and to a clock terminal of the memory circuit. The circuit also includes test circuitry 902 coupled to address and control terminals of the memory circuit and to the output terminal of the storage element. The test circuitry is operable to store or generate a test data pattern and compare the pattern to data output from the storage element. In one embodiment, the storage element is a data latch comprising a clock-enabled inverter serially coupled with a flip-flop. The flip-flop in one embodiment is a cross-coupled inverter storage cell or “keeper”.
    Type: Grant
    Filed: March 12, 1998
    Date of Patent: July 24, 2001
    Assignee: Texas Instruments Incorporated
    Inventors: Masashi Hashimoto, James N. Hall
  • Patent number: 4028508
    Abstract: A locking device is provided for use in preventing the unauthorized use of telephones of the type having a handset and a base wherein the calling element is contained on the inner surface of the headset. The device includes a fixed engaging element attached to a locking element by means of a strap which encircles the outer surface of the handset. An adjustable engaging element is further provided and is adjustably secured to the locking element. When the calling element is a rotary dial, the engaging elements engage the dial and prevent rotation thereof. When the calling element is a plurality of push buttons, the engaging elements engage a protective cover and prevent manipulation of the pushbutton.
    Type: Grant
    Filed: June 2, 1976
    Date of Patent: June 7, 1977
    Inventor: James N. Hall