Bipolar Transistor Patents (Class 326/48)
  • Patent number: 10175942
    Abstract: An arithmetic formula is discovered that can be used to reduce logic to arithmetic. The formula enables a logic algorithm to be reduced to an arithmetic algorithm without the use of logical trees, thereby converting a logical operation to an arithmetic operation. The use of the arithmetic formula enables the computation of functions that use Boolean logic. The operation of a computer program relies on logic circuits, which in turn implement Boolean logic. Considering that a computer program requires a minimum of one or more logic circuits to execute, it now becomes possible to replace the functions of these logic circuits by a computer program implementing the arithmetic formula. Therefore, it is possible to develop software that functions similar to a real processor.
    Type: Grant
    Filed: February 16, 2015
    Date of Patent: January 8, 2019
    Inventor: Ranganath Gururaj Kulkarni
  • Patent number: 7671624
    Abstract: A packaged PLD solution includes a first die having a masked-Read Only Memory (ROM) that is programmed during its fabrication to store configuration data, and includes a second die having a PLD including a number of configurable resources collectively configured to implement a circuit design embodied by the configuration data. The first die is electrically connected to the second die, and both the first die and second die are stacked and encapsulated together to form the packaged PLD solution. The configuration data is programmed into the masked-ROM by a manufacturer of both the masked-ROM and the PLD.
    Type: Grant
    Filed: October 10, 2006
    Date of Patent: March 2, 2010
    Assignee: XILINX, Inc.
    Inventor: James A. Walstrum, Jr.
  • Patent number: 7373569
    Abstract: In one embodiment, a storage circuit comprises a first passgate having an input coupled to receive a signal representing a data input to the storage circuit and further having an output connected to a storage node in the storage circuit. The storage circuit also comprises a scan latch having an input connected to a scan data input to the storage circuit and further coupled to receive a scan enable input. The scan latch is configured to store the scan data input responsive to an assertion of the scan enable input, and also comprises a second passgate connected to the storage node and having an input coupled to receive the stored scan data. Each of the first passgate and the second passgate are coupled to receive respective pairs of control signals to control opening and closing of the passgates, wherein the scan enable signal controls which of the respective pairs of control signals are pulsed.
    Type: Grant
    Filed: December 15, 2005
    Date of Patent: May 13, 2008
    Assignee: P.A. Semi, Inc.
    Inventor: Edgardo F. Klass
  • Patent number: 7345378
    Abstract: A power supply circuit contains a plurality of DC-DC converter control loops that provide respectively different control signals. A plurality of output driver stages of given current drive capabilities have their inputs programmably connectable via a set of switches to control signals that may be generated by any of the converter control loops. The output of each output driver stage is externally selectively connectable to any of plural output voltage ports, so that each output voltage port is capable of supplying any of the respectively different output voltages associated with the voltage control signals generated by the DC-DC converter control loops, and has an output current capability that depends upon which output driver stages are coupled to it.
    Type: Grant
    Filed: December 7, 2004
    Date of Patent: March 18, 2008
    Assignee: Intersil Americas Inc.
    Inventor: Lawrence George Pearce
  • Patent number: 7292066
    Abstract: A one-time programmable circuit uses forced BJT hFE degradation to permanently store digital information as a logic zero or logic one state. The forced degradation is accomplished by applying a voltage or current to the BJT for a specific time to the reversed biased base-emitter junction, allowing a significant degradation of the junction without destroying it.
    Type: Grant
    Filed: April 27, 2005
    Date of Patent: November 6, 2007
    Assignees: STMicroelectronics, Inc., STMicroelectronics S.A., STMicroelectronics SRL
    Inventors: Roberto Alini, Sergio Stefano Rovati, Eric Vandenbossche, Christopher Paskins
  • Patent number: 6975679
    Abstract: Configuration bits are provided that configure PWM outputs of a processor incorporating a PWM module. The configuration bits cause the PWM module to put the PWM outputs into tri-state, active high or active low modes when the PWM module is inactive or when individual PWM outputs are not enabled. The configuration bits are stored in non-volatile memory and perform the configuration after power-up of the processor and after a reset when the PWM module is generally in an inactive state.
    Type: Grant
    Filed: June 1, 2001
    Date of Patent: December 13, 2005
    Assignee: Microchip Technology Incorporated
    Inventor: Stephen A. Bowling
  • Patent number: 6424172
    Abstract: This invention relates to a circuit structure of the feedforward type with programmable zeroes, particularly for synthesizing time-continual filters. This structure comprises a pair of amplification cells interconnected at least one interconnection node and connected between a first signal input of a first cell and an output terminal of the second cell, each cell comprising a pair of transistors which have a conduction terminal in common and have the other conduction terminals coupled respectively to a first voltage reference through respective bias members. The structure further comprises a circuit leg connecting a node of the first cell to the output terminal and comprising a transistor which has a control terminal connected to the node of the first cell, a first conduction terminal connected to the output terminal, and a second conduction terminal coupled to a second voltage reference through a capacitor.
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: July 23, 2002
    Assignee: STMicronelectronics, S.r.l.
    Inventors: Valerio Pisati, Salvatore Portaluri, Marco Cazzaniga, Rinaldo Castello
  • Patent number: 6393603
    Abstract: Antenna size of conductive members is calculated with respect to an area of a gate oxide film of a transistor using an expression which approximates an actual relationship of changes therein, not using a simple proportional relationship. As a result, in design of a structure having conductive members connected to a gate oxide film of a transistor, it is possible to properly calculate an antenna size such as wire length of the conductive members with respect to an area of the gate oxide film.
    Type: Grant
    Filed: December 6, 1999
    Date of Patent: May 21, 2002
    Assignee: NEC Corporation
    Inventor: Ko Noguchi
  • Patent number: 5744981
    Abstract: Architecture for a programmable logic device is described which can operate at substantially faster clock rates than present programmable logic devices. The PLD uses BiCMOS circuit elements to make use of the speed advantages of bipolar technology while also enjoying the limited power consumption of CMOS technology.
    Type: Grant
    Filed: January 16, 1997
    Date of Patent: April 28, 1998
    Assignee: Dyna Logic Corporation
    Inventors: Paul T. Sasaki, Suresh M. Menon, Tsung C. Whang
  • Patent number: 5614844
    Abstract: Architecture for a programmable logic device is described which can operate at substantially faster clock rates than present programmable logic devices. The PLD uses BiCMOS circuit elements to make use of the speed advantages of bipolar technology while also enjoying the limited power consumption of CMOS technology.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: March 25, 1997
    Assignee: Dyna Logic Corporation
    Inventors: Paul T. Sasaki, Suresh M. Menon, Tsung C. Whang
  • Patent number: 5563530
    Abstract: A multi-function resonant tunneling logic gate is provided in which a resonant tunneling transistor (12) includes a first terminal, a second terminal, and a third terminal. A plurality of signal inputs are coupled to the first terminal of the resonant tunneling transistor (12) through a summer (10). Furthermore, a biasing input is operable to apply a bias to the first terminal of resonant tunneling transistor (12) such that the transfer characteristic of the resonant tunneling transistor (12) can be shifted relative to the signal inputs.
    Type: Grant
    Filed: February 10, 1994
    Date of Patent: October 8, 1996
    Assignee: Texas Instruments Incorporated
    Inventors: Gary A. Frazier, Alan C. Seabaugh