Having Discharged Device Or Particular Construction Patents (Class 331/184)
  • Patent number: 7728688
    Abstract: A power supply circuit includes a first voltage regulator to generate a first supply voltage for a first circuit of a phase-locked loop and a second voltage regulator to generate a second supply voltage for a second circuit of the phase-locked loop. The first and second supply voltages are independently generated by the first and second voltage regulators based on the same reference signal. The first circuit may be a charge pump and the second circuit may be a voltage-controlled oscillator. Different circuits may be supplied with the independently generated supply voltages in alternative embodiments.
    Type: Grant
    Filed: December 7, 2006
    Date of Patent: June 1, 2010
    Assignee: Intel Corporation
    Inventor: Joseph Shor
  • Patent number: 6762652
    Abstract: An oscillator for use in a preconditioner includes a rectifier, a converter receiving an input voltage and supplying an output voltage, and a control unit effecting peak current mode control. The oscillator has a switching frequency with a period dependent on the input voltage and the output voltage.
    Type: Grant
    Filed: July 10, 2002
    Date of Patent: July 13, 2004
    Assignee: Koninklijke Philips Electronics N.V.
    Inventor: Humphry Rene De Groot
  • Patent number: 5914067
    Abstract: A microwave oven includes a microwave generating apparatus having a cathode, a first grid for controlling the flow of electrons from the cathode, the first grid having holes for converting electrons from the cathode to the electron beams, a choke structure, positioned between the cathode and the first grid, for serving as a blocking capacitor, wherein the cathode, the first grid and the choke structure define an input cavity functioning as a resonant circuit, a resistor, one end of which is connected to the first grid and the other end thereof is connected to the cathode, for inducing a bias voltage on the first grid, a second grid provided above the first grid and having holes through which the electron beams passing through holes of the first grid pass, an anode for receiving the electrons passing through the holes of the second grid, wherein the second grid and the anode define an output cavity for generating a microwave, the output cavity being electrically insulated from the input cavity, and a driving v
    Type: Grant
    Filed: June 23, 1998
    Date of Patent: June 22, 1999
    Assignee: Daewoo Electronics Co., Ltd.
    Inventor: Lee-Kyo Chung
  • Patent number: 5883367
    Abstract: A microwave oven includes a cooking chamber, a waveguide, and an apparatus for generating a microwave frequency energy.
    Type: Grant
    Filed: December 4, 1997
    Date of Patent: March 16, 1999
    Assignee: Daewoo Electronics Co., Ltd.
    Inventors: Gi-Jun Cho, Jae-Soo Kim
  • Patent number: 5883369
    Abstract: An apparatus for generating a microwave frequency energy includes a cathode for emitting electrons, a first grid for controlling and focusing the flow of electrons from the cathode, a choke structure for serving as a capacitor, wherein the cathode, the first grid and the choke structure define an input cavity functioning as a resonant circuit.
    Type: Grant
    Filed: December 4, 1997
    Date of Patent: March 16, 1999
    Assignee: Daewoo Electronics Co., Ltd.
    Inventors: Jae-Soo Kim, Hong-Woo Lee
  • Patent number: 5883368
    Abstract: An apparatus for generating a microwave frequency energy includes a cathode for emitting electrons, a first grid for controlling and focusing the flow of electrons from the cathode, a choke structure for serving as a capacitor, wherein the cathode, the first grid and the choke structure define an input cavity functioning as a resonant circuit.
    Type: Grant
    Filed: December 4, 1997
    Date of Patent: March 16, 1999
    Assignee: Daewoo Electronics Co., Ltd.
    Inventor: Shin-Jae Jeong
  • Patent number: 5850074
    Abstract: A microwave oven includes a microwave generating apparatus having a cathode, a first grid for controlling the flow of electrons from the cathode. The first grid has holes for converting electrons from the cathode to the electron beams and a metal film for reducing emission of secondary electron from the first grid. The cathode, the first grid and the choke structure define an input cavity functioning as a resonant circuit. The microwave generating apparatus further includes a resistor for inducing a bias voltage on the first grid, a second grid having holes through which the electron beams passing through holes of the first grid pass, an anode for receiving the electrons passing through the holes of the second grid, and a driving voltage source for providing a driving voltage to the cathode and the anode. The anode is provided with a plurality of protuberances for reducing emission of secondary electron from the anode. The second grid and the anode define an output cavity for generating a microwave.
    Type: Grant
    Filed: June 30, 1998
    Date of Patent: December 15, 1998
    Assignee: Daewoo Electronics Co., Ltd.
    Inventor: Lee-Kyo Chung
  • Patent number: 5841114
    Abstract: A microwave oven includes a microwave generating apparatus having a cathode, a first grid for controlling the flow of electrons from the cathode, the first grid having holes for converting electrons from the cathode to the electron beams, a choke structure, positioned between the cathode and the first grid, for serving as a blocking capacitor, wherein the cathode, the first grid and the choke structure define an input cavity functioning as a resonant circuit, an array of resistors, one end of which is connected to the first grid and the other end thereof is connected to the cathode, for inducing a bias voltage on the first grid, a controller for controlling the array of resistors to make a plurality of resistance values, a second grid provided above the first grid and having holes through which the electron beams passing through holes of the first grid pass, an anode for receiving the electrons passing through the holes of the second grid, wherein the second grid and the anode define an output cavity for gene
    Type: Grant
    Filed: June 25, 1998
    Date of Patent: November 24, 1998
    Assignee: Daewoo Electronics Co., Ltd.
    Inventor: Shin-Jae Jeong
  • Patent number: 5121087
    Abstract: An FED, modified with an electrostatically deformable anode, has a control network attached to electrodes thereof to switch the FED off as the anode is deformed by electrostatic force and switch the FED on as the anode returns to a quiescent state. Frequency selectivity is realized by incorporating a variable frequency determining network within the control network.
    Type: Grant
    Filed: June 10, 1991
    Date of Patent: June 9, 1992
    Assignee: Motorola, Inc.
    Inventors: Robert T. Smith, Robert C. Kane
  • Patent number: 4260933
    Abstract: An optical generator of an electrostatic field at light frequencies tuneable over the entire band of visible light frequencies including a pair of spaced electrodes in a gas filled tube having at least one absolute condenser plate adjacent one electrode, a dielectric-filled container enclosing the tube, and a resonant circuit operable to generate electric light of a selected frequency.
    Type: Grant
    Filed: December 10, 1979
    Date of Patent: April 7, 1981
    Inventor: Jerry Volland