Patents by Inventor Leslie Perry
Leslie Perry 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).
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Patent number: 8121569Abstract: Techniques involving the generation of signals at particular frequencies are disclosed. For instance, an apparatus may include an oscillator module, a synthesizer module, and a control module. The oscillator module produces an oscillator signal having a first frequency. From the oscillator signal, the synthesizer module produces an output signal having a second frequency. A frequency multiplier corresponds to the first and second frequencies. The control module selects the first frequency and the frequency multiplier such that a difference between the second frequency and a nearest integer multiple of the first frequency is greater than a predetermined threshold. As a result, reductions in spurious outputs may be achieved.Type: GrantFiled: September 30, 2008Date of Patent: February 21, 2012Assignee: Intel CorporationInventors: Colin Leslie Perry, Alan John Martin, Richard Jeremy Salt
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Patent number: 7855594Abstract: Methods and apparatus to fine gain and/or phase adjustment of analog quadrature filters are described. In one embodiment, gain and/or phase of an analog quadrature filter may be digitally controlled by switching one or more resistors coupled to the quadrature filter. Other embodiments are also described.Type: GrantFiled: March 31, 2008Date of Patent: December 21, 2010Assignee: Intel CorporationInventor: Colin Leslie Perry
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Publication number: 20100081405Abstract: Techniques involving the generation of signals at particular frequencies are disclosed. For instance, an apparatus may include an oscillator module, a synthesizer module, and a control module. The oscillator module produces an oscillator signal having a first frequency. From the oscillator signal, the synthesizer module produces an output signal having a second frequency. A frequency multiplier corresponds to the first and second frequencies. The control module selects the first frequency and the frequency multiplier such that a difference between the second frequency and a nearest integer multiple of the first frequency is greater than a predetermined threshold. As a result, reductions in spurious outputs may be achieved.Type: ApplicationFiled: September 30, 2008Publication date: April 1, 2010Inventors: Colin Leslie Perry, Alan John Martin, Richard Jeremy Salt
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Publication number: 20090243811Abstract: Methods and apparatus to fine gain and/or phase adjustment of analog quadrature filters are described. In one embodiment, gain and/or phase of an analog quadrature filter may be digitally controlled by switching one or more resistors coupled to the quadrature filter. Other embodiments are also described.Type: ApplicationFiled: March 31, 2008Publication date: October 1, 2009Inventor: Colin Leslie Perry
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Patent number: 7411469Abstract: A circuit arrangement having a plurality of variable capacitance elements such as varactors is described, the varactors having associated electronic control means which controls the capacitance of the variable capacitance elements over a control range. The control range is such that for any particular variable capacitance element a complete variation from a lowest to a highest capacitance is obtained from only a portion of the control range.Type: GrantFiled: October 10, 2006Date of Patent: August 12, 2008Assignee: Intel CorporationInventors: Colin Leslie Perry, Stephen John Parry, Alessandro F. Deidda, Christopher R. Shepherd
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Patent number: 7358825Abstract: A variable capacitance network is disclosed, comprising a plurality of capacitance arms connected in parallel with each other between first and second terminals of the network. Each capacitance arm has a varactor and a series capacitor in series with the varactor A control input applies a common control signal to the junctions between the varactors and their associated series capacitors, to allow for simultaneous control of each varactor.Type: GrantFiled: October 10, 2006Date of Patent: April 15, 2008Assignee: Intel CorporationInventors: Colin Leslie Perry, Stephen John Parry, Alessandro F. Deidda, Christopher R. Shepherd
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Patent number: 7358824Abstract: A variable capacitance network is disclosed, comprising a plurality of capacitance arms connected in parallel with each other between first and second terminals of the network. Each capacitance arm has a varactor and a series capacitor in series with the varactor A control input applies a common control signal to the junctions between the varactors and their associated series capacitors, to allow for simultaneous control of each varactor.Type: GrantFiled: October 10, 2006Date of Patent: April 15, 2008Assignee: Intel CorporationInventors: Colin Leslie Perry, Stephen John Parry, Alessandro F. Deidda, Christopher R. Shepherd
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Patent number: 7209016Abstract: A circuit arrangement having a plurality of variable capacitance elements such as varactors is described, the varactors having associated electronic control means which controls the capacitance of the variable capacitance elements over a control range. The control range is such that for any particular variable capacitance element a complete variation from a lowest to a highest capacitance is obtained from only a portion of the control range.Type: GrantFiled: November 16, 2004Date of Patent: April 24, 2007Assignee: Intel CorporationInventors: Colin Leslie Perry, Stephen John Parry, Alessandro F. Deidda, Christopher R. Shepherd
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Patent number: 7187247Abstract: A variable capacitance network is disclosed, comprising a plurality of capacitance arms connected in parallel with each other between first and second terminals of the network. Each capacitance arm has a varactor and a series capacitor in series with the varactor A control input applies a common control signal to the junctions between the varactors and their associated series capacitors, to allow for simultaneous control of each varactor.Type: GrantFiled: November 16, 2004Date of Patent: March 6, 2007Assignee: Intel CorporationInventors: Colin Leslie Perry, Stephen John Parry, Alessandro F. Deidda, Christopher R. Shepherd
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Publication number: 20050011199Abstract: A method, system, and apparatus for controlling the temperature within a remotely located enclosure that contains temperature sensitive equipment is provided. For some embodiments, the system includes an array of thermoelectric cooling (TEC) devices that act as an active cooling device and an active heating device. The system may also include a temperature controller that receives signals from a temperature sensor located at or near the temperature sensitive equipment. The controller may be configured to supply DC power to the thermoelectric coupling devices based on the output signal of the temperature sensor. The polarity of the DC power can be reversed by the controller in order to cause the thermoelectric device to heat or to cool the enclosure. The system also contains a passive cooling device. The system includes an independent electrical power source with a battery and solar cell to supply power to the temperature control devices and the equipment contained in the enclosure.Type: ApplicationFiled: July 15, 2003Publication date: January 20, 2005Inventors: John Grisham, Michael Meadows, Leslie Perry, Alan Sallwasser
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Patent number: 5760641Abstract: A controllable filter arrangement comprises a filter network for filtering an input signal of the filter arrangement, and a transistor, the transistor being configured as a voltage-follower having a controllable current source in its output circuit for providing a controllable DC transistor output current, an output terminal of the voltage-follower being connected to the filter network such that a cut-off frequency of the filter can be controlled by variation of the DC current supplied by the current source. The filter network may be a single-pole RC network and the output of the follower may be connected to an additional capacitor (or resistor) of the network which is coupled to the junction of the existing capacitor and resistor.Type: GrantFiled: February 21, 1996Date of Patent: June 2, 1998Assignee: Plessey Semiconductors LimitedInventors: Marcus Richard Granger-Jones, Colin Leslie Perry