Patents Assigned to Freescale
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Patent number: 7879666Abstract: A semiconductor process and apparatus fabricate a metal gate electrode (30) and an integrated semiconductor resistor (32) by forming a metal-based layer (26) and semiconductor layer (28) over a gate dielectric layer (24) and then selectively implanting the resistor semiconductor layer (28) in a resistor area (97) to create a conductive upper region (46) and a conduction barrier (47), thereby confining current flow in the resistor semiconductor layer (36) to only the top region (46) in the finally formed device.Type: GrantFiled: July 23, 2008Date of Patent: February 1, 2011Assignee: Freescale Semiconductor, Inc.Inventors: Da Zhang, Chendong Zhu, Xiangdong Chen, Melanie Sherony
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Patent number: 7881813Abstract: Methods and data processing systems are provided to share a common pin between two circuits in microcontroller unit (MCU). Signals are received at a common pin included in the MCU. If the first circuit has been enabled, then the received signals are analyzed to determine whether the signals are valid command signals for the first circuit. If the signals are not a valid command signal, then a second circuit is performed. If the first circuit has not been enabled, then an alternate function is performed. One of the operations performed by the alternate function is to determine whether to enable the first function. In one embodiment, the first circuit is a background debug controller of the MCU and the second circuit is a reset circuit.Type: GrantFiled: June 16, 2006Date of Patent: February 1, 2011Assignee: Freescale Semiconductor, Inc.Inventors: James M. Sibigtroth, Dionicio Garcia, III
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Patent number: 7880650Abstract: A data converter for converting analog signals to digital signals, or for converting digital signals to analog signals is provided. In one embodiment, a production self-test is provided. In one embodiment, a high-speed lower-resolution method or mode for a data converter is provided. In one embodiment, a differential data converter with a more stable comparator common mode voltage is provided. In one embodiment, the input range of a digitally calibrated data converter is provided and maintained so that there is no loss in input range due to the calibration. In one embodiment, digital post-processing of an uncalibrated result using a previously stored calibration value is provided.Type: GrantFiled: September 30, 2008Date of Patent: February 1, 2011Assignee: Freescale Semiconductor, Inc.Inventors: James R. Feddeler, Michael T. Berens
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Patent number: 7880653Abstract: Embodiments include integrator systems, switched-capacitor circuits, and methods of their operation. An integrator system comprises a differential amplifier and first and second sampling modules. The first sampling module includes a first capacitor and a first set of switches. The first set of switches changes a connection status between the first capacitor and first and second amplifier input terminals when a change in a polarity of a differential input signal does not occur between consecutive switching cycles, and refrains from changing the connection status when the change in the polarity does occur. The second sampling module includes a second capacitor and a second set of switches. The second set of switches changes a connection status between the second capacitor and the first and second amplifier input terminals when the change in the polarity does occur, and refrains from changing the connection status when the change in the polarity does not occur.Type: GrantFiled: January 30, 2009Date of Patent: February 1, 2011Assignee: Freescale Semiconductor, Inc.Inventors: Merit Y. Hong, Mohammad Nizam U. Kabir
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Patent number: 7882383Abstract: A system on a chip includes a real time clock (RTC) module, a crystal oscillation circuit and a voltage supply circuit. The RTC module is coupled to provide timing functions and the crystal oscillation circuit is coupled to produce an oscillation. The voltage supply circuit is coupled to produce a supply voltage for at least a portion of the RTC module and the crystal oscillation circuit. The voltage supply circuit includes: a reference circuit coupled to produce a reference voltage based on the supply voltage; a transistor coupled to the battery IC pin, wherein the transistor produces the supply voltage based on a regulation signal and the battery voltage; an amplifier coupled to produce the regulation signal based on the reference voltage and a feedback representation of the supply voltage; and a start-up circuit coupled to enable the voltage supply circuit at battery connection.Type: GrantFiled: April 25, 2007Date of Patent: February 1, 2011Assignee: Freescale Semiconductor, Inc.Inventors: Marcus W. May, David A. Dyches
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Patent number: 7880550Abstract: Apparatus are provided for a voltage-controlled oscillator module. A voltage-controlled oscillator module comprises an input node for receiving an input voltage, a voltage-controlled oscillator, and voltage translation circuitry coupled between the input node and the voltage-controlled oscillator. The voltage translation circuitry is configured to generate a control voltage based on the input voltage and the voltage-controlled oscillator generates an oscillating signal at an oscillation frequency in response to the control voltage. Biasing circuitry is coupled to the voltage translation circuitry, and the biasing circuitry is configured to adjust the ratio of the control voltage to the input voltage.Type: GrantFiled: June 12, 2009Date of Patent: February 1, 2011Assignee: Freescale Semiconductor, Inc.Inventors: Khoi B. Mai, Hector Sanchez
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Patent number: 7880516Abstract: A method for reducing noise in a device that includes at least one phase locked loop (PLL), the method includes: adjusting at least one adjustable component of a PLL such as to determine a time shift; modulating a frequency divider such as to generate a modulation noise within a modulation noise period and to provide a frequency divided signal; introducing the time shift between the modulation noise period and a measurement period; and measuring during a measurement period a difference between a reference signal and the frequency divided signal. A device that includes a phased locked loop.Type: GrantFiled: March 31, 2005Date of Patent: February 1, 2011Assignee: Freescale Semiconductor, Inc.Inventors: Hugues Beaulaton, Stephane Colomines, Philippe Gorisse
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Patent number: 7880654Abstract: Apparatus are provided for continuous-time sigma-delta modulators. A sigma-delta modulator comprises a quantizer configured to convert an analog signal to a digital value. A main feedback arrangement is coupled to the quantizer, and the main feedback arrangement delays the digital value by a first delay period and generates a main feedback signal based on the delayed value. A compensation feedback arrangement is coupled to the quantizer, and compensation feedback arrangement delays the digital value by a second delay period and generates a compensation feedback signal based on the delayed value. A forward signal arrangement produces the analog signal at the quantizer based on an input signal, the main feedback signal, and the compensation feedback signal. The second delay period is independent of and is not influenced by the first delay period, and the second delay period is chosen such that the compensation feedback signal compensates for the first delay period.Type: GrantFiled: February 27, 2009Date of Patent: February 1, 2011Assignee: Freescale Semiconductor, Inc.Inventors: Omid Oliaei, Brandt Braswell
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Patent number: 7881721Abstract: A technique of operating a wireless communication system includes determining respective geometries of multiple subscriber stations, which include a first subscriber station and a second subscriber station, with respect to a serving base station. Respective channel sounding bandwidths for sounding the channel between the multiple subscriber stations and the serving base station are then scheduled, based on the respective geometries. The respective channel sounding bandwidths include a first channel sounding bandwidth (associated with the first subscriber station) and a second channel sounding bandwidth (associated with the second subscriber station). The first channel sounding bandwidth is greater than or equal to the second channel sounding bandwidth and the first subscriber station has a lower geometry than the second subscriber station.Type: GrantFiled: April 30, 2007Date of Patent: February 1, 2011Assignee: Freescale Semiconductor, Inc.Inventors: James W. McCoy, Ning Chen
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Patent number: 7880457Abstract: A dual loop DC-to-DC converter is provided that includes a first control loop that maintains a DC output voltage (VOUT) less than or equal to a desired maximum value of the VOUT, a second control loop that operates simultaneously with the first control loop and maintains a DC input voltage (VIN) greater than or equal to a desired minimum value of the VIN, and a duty cycle selection module. The first control loop generates a first clock signal having a first duty cycle, and the second control loop generates a second clock signal having a second duty cycle. The duty cycle selection module continuously determines which one of the first duty cycle and the second duty cycle has a lower duty cycle value, and continuously generates a PWM output signal having a modulated duty cycle equal to the lower duty cycle value.Type: GrantFiled: September 30, 2008Date of Patent: February 1, 2011Assignee: Freescale semiconductor, Inc.Inventor: John M. Pigott
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Publication number: 20110018678Abstract: The present invention provides a poly-resistor with an improved linearity. Majority charge carrier wells are provided under the poly-strips and are biased in such way that the non-linearity of the resistor is reduced. Further, when such poly-resistors are used in amplifier circuits, the gain of the amplifier remains constant against the poly-depletion effect.Type: ApplicationFiled: April 11, 2008Publication date: January 27, 2011Applicant: Freescale Semiconductor, Inc.Inventor: Jerome Anjalbert
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Publication number: 20110018594Abstract: A latch module comprising a sense pair of transistor elements coupled together for sensing a differential input signal at input terminals, a level-shift module for producing a differential output signal at output terminals, and a regenerative pair of transistor elements coupled together and with the input pair for holding the output signal through the level-shift module. The latch module also includes a pair of gate transistor elements connected in series respectively with the sense pair of transistor elements and with the regenerative pair of transistor elements and responsive to an alternating differential gate signal, to activate alternately the sense pair during sense periods and the regenerative pair during store periods. A current injector provides asymmetric operation by injecting current between at least one of the gate transistors and the corresponding sense or regenerative pair of transistor elements so that the sense periods are of different duration from the store periods.Type: ApplicationFiled: March 20, 2008Publication date: January 27, 2011Applicant: Freescale Semiconductor, IncInventor: Trotta Saverio
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Publication number: 20110022800Abstract: A method for selecting a cache way, the method includes: selecting an initially selected cache way out of multiple cache ways of a cache module for receiving a data unit; the method being characterized by including: searching, if the initially selected cache way is locked, for an unlocked cache way, out of at least one group of cache ways that are located at predefined offsets from the first cache way.Type: ApplicationFiled: April 11, 2008Publication date: January 27, 2011Applicant: Freescale Semiconductor, Inc.Inventors: Rotem Porat, Moshe Anschel, Alon Eldar, Amit Gur, Shai Koren, Itay Peled
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Publication number: 20110021024Abstract: The present invention provides a process for forming a capping layer on a conducting interconnect for a semiconductor device, the process comprising: providing a substrate comprising one or more conductors in a dielectric layer, the conductors having an oxide layer at their surface; exposing the surface of the substrate to a vapour of ?-diketone or a ?-ketoimine; and depositing a capping layer on the surface of at least some of the one or more conductors. The present invention further provides an apparatus for carrying out this method.Type: ApplicationFiled: April 11, 2008Publication date: January 27, 2011Applicant: Freescale Semiconductor, Inc.Inventors: Maria Luisa Calvo-Munoz, Janos Farkas
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Publication number: 20110022897Abstract: A microcontroller device comprising a receiver component configured to receive a one or more reset signals for the microcontroller device; an identification component configured to identify a source of the or each reset signals received by the receiver component; a time interval determining component configured to determine a length of a time interval in accordance with the identified source of the or each reset signals received by the receiver component; a voltage setting component configured to set a voltage of an output of the microcontroller device to a first value on receipt of a reset signal by the receiver component; and a control component configured to maintain the voltage of the output at the first value for the duration of the determined length of the time interval; and set the voltage of the output to a second value on substantial completion of the determined length of the time interval.Type: ApplicationFiled: April 15, 2008Publication date: January 27, 2011Applicant: Freescale Semiconductor, Inc.Inventors: Ray Marshall, Thomas Macdonald, Andrew Stephen Mihalik
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Publication number: 20110017926Abstract: A system and method are provided for automatic dose-correction recipe generation, the system including a dose-correction recipe generator, a reticle data unit in signal communication with the recipe generator, a slit data unit in signal communication with the recipe generator, a process data unit in signal communication with the recipe generator, a wafer data unit in signal communication with the recipe generator, a control unit in signal communication with the recipe generator, and an output unit or a storage unit in signal communication with the control unit; and the method including receiving a current reticle data set and a previous reticle data set, receiving a current slit data set and a previous slit data set, receiving a process condition, receiving a wafer condition, automatically generating a dose-correction recipe in accordance with the received reticle, slit, process and wafer information, and controlling a dose in accordance with the generated recipe.Type: ApplicationFiled: July 27, 2009Publication date: January 27, 2011Applicants: Chartered Semiconductor Manufacturing Ltd., Freescale Semiconductor, INTERNATIONAL BUSINESS MACHINES CORPORATION, Samsung Electronics Co., Ltd.Inventors: Hyung-Rae Lee, Dong Hee Yu, Sohan Singh Mehta, Niall Shepherd, Daniel A. Corliss
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Patent number: 7876911Abstract: A headphone driver includes a driver module for generating a plurality of headphone driver signals including a filtered stereo sum signal.Type: GrantFiled: March 27, 2006Date of Patent: January 25, 2011Assignee: Freescale Semiconductor, Inc.Inventors: Matthew D. Felder, Matthew Brady Henson
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Patent number: 7876254Abstract: A data converter for converting analog signals to digital signals, or for converting digital signals to analog signals is provided. In one embodiment, a production self-test is provided. In one embodiment, a high-speed lower-resolution method or mode for a data converter is provided. In one embodiment, a differential data converter with a more stable comparator common mode voltage is provided. In one embodiment, the input range of a digitally calibrated data converter is provided and maintained so that there is no loss in input range due to the calibration. In one embodiment, digital post-processing of an uncalibrated result using a previously stored calibration value is provided.Type: GrantFiled: September 30, 2008Date of Patent: January 25, 2011Assignee: Freescale Semiconductor, Inc.Inventors: Michael T. Berens, James R. Feddeler
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Patent number: 7877015Abstract: An optical to radio frequency detector comprises an optical guide for receiving two optical signal components having frequencies that differ by an amount corresponding to a radio frequency, and a radio signal guide coupled with an interaction zone of the optical guide for propagating a radio signal from the interaction zone at the radio frequency. The material of the interaction zone presents a second-order non-linear optical polarization characteristic to the propagation of the optical signal components, and the radio signal guide is in travelling-wave coupling with the interaction zone. A radio signal output is coupled with the radio signal guide.Type: GrantFiled: January 13, 2003Date of Patent: January 25, 2011Assignee: Freescale Semiconductor, Inc.Inventors: Patrick Labbe, Arianna Filoramo, Eric Toussaere, Joseph Zyss
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Publication number: 20110012650Abstract: A microcontroller unit comprises a reset controller operably coupled to a plurality of logic elements of the microcontroller unit. Low voltage detection logic is operably coupled to the reset controller and arranged to provide a plurality of low voltage interrupt signals to a number of respective logic elements of the microcontroller unit via the reset controller. A method of operating a microcontroller unit is also described.Type: ApplicationFiled: April 26, 2007Publication date: January 20, 2011Applicant: Freescale Seminconductor, Inc.Inventors: James Andrew Collier Scobie, Derek Beattie, Carl Culshaw, Alan Devine, James Feddeler