Patents Assigned to Freescale
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Patent number: 9148155Abstract: An integrated circuit (IC) includes multiple circuit modules that have specific clocking requirements, multiple clock sources (e.g., PLLs, duty cycle re-shaper, etc.), and at least one clock input port. The clock sources have specific clock source specifications, and the circuit modules have specific clocking requirements. The clock sources are selected based on an identification of the most common clocking requirements, and then placed at routing distances measured from the input port that are less than corresponding predetermined maximum routing distances such that the clocking requirements of the circuit modules are met. The IC thus generates clock signals internally, rather than externally.Type: GrantFiled: April 8, 2014Date of Patent: September 29, 2015Assignee: FREESCALE SEMICONDUCTOR, INC.Inventors: Amit Aggarwal, Himanshu Goel, Ashish Malhotra, Ankit Pal
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Patent number: 9148169Abstract: A quantizer for an analog to digital converter has an input for receiving an analog input signal. A detector senses a common mode voltage component of the input signal. A reference voltage source produces a plurality of reference voltages. A voltage source biases the reference voltage source in response to the sensed common mode voltage component. Therefore, the common mode voltage in the input signal establishes the common mode voltage of the reference voltage source. A plurality of comparators are connected to the reference voltage source, wherein each of the plurality of comparators compares the input signal to one of the plurality of reference voltages and produces a output bit denoting a result of the comparing.Type: GrantFiled: February 25, 2014Date of Patent: September 29, 2015Assignee: Freescale Semiconductor, Inc.Inventors: Mohammad Nizam Kabir, Brandt Braswell, Mariam Hoseini
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Patent number: 9146170Abstract: An overmolded pressure sensor package is provided. The pressure sensor die (Pcell) is capped so that the Pcell has enhanced rigidity to withstand stress effects produced by the molding encapsulant. The Pcell cap includes a hole located away from the Pcell diaphragm, so that external gas pressure can be experienced by the Pcell, while at the same time directing moisture away from the diaphragm. Gel does not need to be used, and instead a soft film can be deposited on the Pcell to protect the Pcell diaphragm from excess moisture, if needed. The Pcell cap can take the form of, for example, a dummy silicon wafer or a functional ASIC.Type: GrantFiled: July 31, 2012Date of Patent: September 29, 2015Assignee: FREESCALE SEMICONDUCTOR, INC.Inventors: Jian Wen, William G. McDonald
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Patent number: 9148149Abstract: A latch circuit has a tri-state gate and a reverse tri-state gate that share the same complementary controls. The reverse tri-state gate locks an output of the tri-state gate when the tri-state gate is shut-off. The complementary control signals include a first undoped polysilicon strip. The output of the reverse tri-state gate may be coupled to the output of the tri-state gate via a second undoped polysilicon strip.Type: GrantFiled: February 7, 2014Date of Patent: September 29, 2015Assignee: FREESCALE SEMICONDUCTOR, INC.Inventors: Zhihong Cheng, Peidong Wang
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Publication number: 20150270703Abstract: A circuit is configured for providing reverse battery protection. The circuit includes a load driver circuit having at least a first half-bridge circuit with topside and bottomside transistors coupled at a midpoint node by a first current terminal of both the topside and bottomside transistors. A second current terminal of the bottomside transistor is coupled to a voltage common node. The circuit also includes: a reverse battery protection transistor having a first current terminal coupled to a battery supply node and a second current terminal coupled to a second current terminal of the topside transistor; a bootstrap capacitor having a first terminal coupled to a the midpoint node between the topside and bottomside transistors of the first half-bridge circuit; and a diode having an anode coupled to a second terminal of the bootstrap capacitor and a cathode coupled to a control terminal of the reverse battery protection transistor.Type: ApplicationFiled: March 24, 2014Publication date: September 24, 2015Applicant: FREESCALE SEMICONDUCTOR, INC.Inventors: Thomas J. Reiter, Ibrahim S. Kandah
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Publication number: 20150269829Abstract: An apparatus for maintaining alertness of an driver of a motor vehicle periodically generates an audible alert signal to which the driver responds by pressing a button on the vehicle's steering wheel. The response time of the driver to the signal is monitored and if an increase is detected, the repetition rate of the alert signal is increased. The repetition rate may be further modified by taking into account vehicle driving conditions which may indicate a risk of boredom in the driver.Type: ApplicationFiled: October 10, 2012Publication date: September 24, 2015Applicant: FREESCALE SEMICONDUCTOR, INC.Inventors: Andrew Birnie, Derek Beattie, Robert Moran
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Publication number: 20150270195Abstract: A lead frame for a semiconductor device includes a die paddle and leads situated on a perimeter of the lead frame. The die paddle has a metal frame and a number of substantially linear metal connecting bars within the frame. The connecting bars interconnect different locations of the frame to form a multiple triangles, where a triangular-shaped cavity is formed within each triangle. An overall area of the cavities is greater than an overall area of the connecting bars.Type: ApplicationFiled: March 19, 2014Publication date: September 24, 2015Applicant: Freescale Semiconductor, Inc.Inventors: Wai Keong Wong, Soo Choong Chee, Stanley Job Doraisamy
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Publication number: 20150270206Abstract: A semiconductor pressure sensor device having a pressure-sensing die electrically connected to a microcontrol unit (MCU) using either through silicon vias (TSVs) or flip-chip bumps. An active surface of the pressure-sensing die is in facing relationship with the MCU. These embodiments avoid the need to used bonds to electrically connect the pressure-sensing die to the MCU, thereby saving time, reducing size, and reducing cost.Type: ApplicationFiled: March 19, 2014Publication date: September 24, 2015Applicant: Freescale Semiconductor, Inc.Inventors: Wai Yew Lo, Lan Chu Tan
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Publication number: 20150270869Abstract: An electronic device is provided for determining a hopset for a frequency hopping radio communication system. The hopset is a number of radio channels in a range of channels available for radio communication, and other channels in the range constituting a channel pool of pool channels. A hopset processor assesses quality of the radio channels for communication, and removes a channel from the hopset when the assessed quality is below a predetermined threshold. A probability set is provided, the probability set having probability values for respective radio channels in the range, which probability values are adapted based on the assessed quality in the respective radio channels. A replacement channel is selected in a pseudorandom way from the channel pool weighted by the probability values, and then added to the hopset. Due to the pseudorandom selection of channels for the hopset the system can efficiently cope with various interferences.Type: ApplicationFiled: October 30, 2012Publication date: September 24, 2015Applicant: Freescale Semiconductor, Inc.Inventor: Paul Marius BIVOL
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Publication number: 20150269049Abstract: A system for verifying register information includes a design database containing a description of the electronic system, a register description database containing register information relating to the electronic system, a customization information module for storing a customization information extracted from the design database and a simulator which is arranged to execute verification stimuli in accordance with at least one check function and to generate a verification result. Verification stimuli are generated by combining register information with customization information. A mismatch between the expected and actual register implementation is recorded and the register in question identified. This permits corrections to be applied as appropriate to the document database or to the register description database. The corrected register description database may be used in a document generation process to produce an up-to-date reference manual for the electronic system.Type: ApplicationFiled: March 24, 2014Publication date: September 24, 2015Applicant: FREESCALE SEMICONDUCTOR, INC.Inventors: MICHAEL ROHLEDER, GLEN NICHOLAS MITHRAN EVANS, BRIDGET CATHERINE HOOSER, CARMEN KLUG-MOCANU
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Publication number: 20150268985Abstract: The present invention relates to apparatus and methods for low latency data delivery within multi-core processing systems. The apparatus and method comprises assigning a task to a processing core; identifying a job within the task to be performed via an accelerator; performing and completing the job via the accelerator; generating output data including associated status information via the accelerator, the status information including an associated inactive write strobe; snooping the status information to determine when the job being performed by the accelerator is completed, the snooping comprising snooping the status information; and continuing executing the task using the output data associated with the status information.Type: ApplicationFiled: March 24, 2014Publication date: September 24, 2015Applicant: FREESCALE SEMICONDUCTOR, INC.Inventors: Tommi M. Jokinen, Zheng Xu, Kun Xu
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Publication number: 20150270333Abstract: A device includes a semiconductor substrate, source and drain regions disposed in the semiconductor substrate and having a first conductivity type, a body region disposed in the semiconductor substrate, having a second conductivity type, and in which the source region is disposed, a drift region disposed in the semiconductor substrate, having the first conductivity type, and through which charge carriers drift during operation upon application of a bias voltage between the source and drain regions, a device isolation region disposed in the semiconductor substrate and laterally surrounding the body region and the drift region, and a breakdown protection region disposed between the device isolation region and the body region and having the first conductivity type.Type: ApplicationFiled: March 18, 2014Publication date: September 24, 2015Applicant: FREESCALE SEMICONDUCTOR, INC.Inventors: Hongning Yang, Xin Lin, Zhihong Zhang, Jiang-Kai Zuo
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Publication number: 20150270997Abstract: A signal decoder in a communication system is for decoding signal elements in a communication signal having interleaved carrier frequencies. The decoder receives antenna signals in a frequency domain, and has a multiplier for multiplying the antenna signals by a complex-valued mathematical sequence such as the Zadoff-Chu sequence, to generate multiplied antenna signals. An inverse frequency to time converter converts the multiplied antenna signals to time domain signals. A signal quality detector detects a signal quality from the time domain signals based on a subset of the carrier frequencies. The complex-valued mathematical sequence is provided with zero values corresponding to carrier frequencies that are not included in the subset, and the inverse frequency to time converter has a transform size corresponding to the multiplied antenna signals including all carrier frequencies.Type: ApplicationFiled: August 25, 2014Publication date: September 24, 2015Applicant: FREESCALE SEMICONDUCTOR, INC.Inventor: VINCENT PIERRE MARTINEZ
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Publication number: 20150270259Abstract: An integrated circuit comprising a power supply node, a ground node and a gated domain coupled between the power node and the ground node. A Charged Device Model electrostatic discharge protection module is provided for shunting electrical energy of a CDM ESD event away from the gated domain. A gating switch makes an electrical connection in a connected state between the gated domain and at least one of the power node and the ground node. ESD gating control circuitry is coupled to the CDM ESD protection module and controls shunting of energy away from the gated domain by the CDM ESD protection module, thereby avoiding the energy flowing through the gated domain. The ESD gating control circuitry inhibits actuation of the CDM ESD protection module to prevent response to CDM ESD events when the gating domain is powered-up.Type: ApplicationFiled: November 22, 2011Publication date: September 24, 2015Applicant: FREESCALE SEMICONDUCTOR, INC.Inventors: Sergey Sofer, Valery Neiman, Michael Priel
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Publication number: 20150268269Abstract: A MEMS sensor includes a movable element spaced apart from a surface of a substrate and fixed sense elements attached to the substrate, where all of the fixed sense elements are oriented parallel to one another. The movable element includes movable sense elements adjacent to the fixed sense elements. The movable element is adapted to undergo motion in response to mutually orthogonal forces, each of the forces being substantially parallel to the surface of the substrate. The fixed sense elements detect the motion of the movable element, and differential logic is applied to determine the magnitudes of the mutually orthogonal forces.Type: ApplicationFiled: March 20, 2014Publication date: September 24, 2015Applicant: FREESCALE SEMICONDUCTOR, INC.Inventors: Kemiao Jia, Andrew C. McNeil, Michael Naumann
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Publication number: 20150266484Abstract: A method and apparatus for generating an indicator of a risk level in motor vehicle and notifying vehicle systems when a risk level is above a specific threshold includes, receiving a plurality of driver distraction indicators, assigning a weighting value to each indicator, applying a scaling factor to the weighting value assigned to those indicators which are identified as being related, and summing the weighting values to produce an output value indicating a risk level. Distraction indicators can include on-board system and sensor outputs and stored data relating to driver attributes. Related indicators may comprise those distraction indicators relating to environmental conditions (eg. rain and low ambient light levels), or to vehicle performance to driver concentration level (eg. in-car phone and navigation system). The scaling step allows the weighting process to be refined based on the status of other received indicators.Type: ApplicationFiled: October 10, 2012Publication date: September 24, 2015Applicant: Freescale Semiconductor, In.Inventors: Robert Moran, Derek Beattle, Andrew Birnie
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Patent number: 9142607Abstract: A capacitor suitable for inclusion in a semiconductor device includes a substrate, a first metallization level, a capacitor dielectric, a capacitor plate, an interlevel dielectric layer, and a second metallization level. The first metallization level overlies the substrate and includes a first metallization plate overlying a capacitor region of the substrate. The capacitor dielectric overlies the first metallization plate and includes a dielectric material such as a silicon oxide or silicon nitride compound. The capacitor plate is an electrically conductive structure that overlies the capacitor dielectric. The interlevel dielectric overlies the capacitor plate. The second metallization layer overlies the interlevel dielectric layer and may include a second metallization plate and a routing element. The routing element may be electrically connected to the capacitor plate. The metallization plates may include a fingered structure that includes a plurality of elongated elements extending from a cross bar.Type: GrantFiled: February 23, 2012Date of Patent: September 22, 2015Assignee: FREESCALE SEMICONDUCTOR, INC.Inventors: Xu Cheng, Todd C. Roggenbauer, Jiang-Kai Zuo
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Patent number: 9143190Abstract: Methods and receiver circuits are provided for correlating an incoming signal with PN codes. An embodiment of the method includes receiving I/Q baseband samples in the I/Q domain; converting the I/Q baseband samples to phase baseband samples; generating a pseudonoise (PN) code; converting the PN code to PN phase data; performing a correlation on the phase baseband samples using the PN phase data to generate correlated I/Q values; performing an adding operation on the correlated I/Q values to generate demodulated I/Q values; converting the demodulated I/Q values into demodulated phase values; performing a frequency correction operation on the demodulated phase values to generate frequency correction data; converting the demodulated I/Q values into demodulated magnitude values; and performing signal decoding and synchronization on the magnitude values to generate output data. The operation of performing correlation on the phase baseband samples using the PN phase data is accomplished using scalar subtraction.Type: GrantFiled: June 12, 2013Date of Patent: September 22, 2015Assignee: FREESCALE SEMICONDUCTOR,INCInventors: James A. Stephens, Dominique Delbecq, Daniel M. Perrine
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Patent number: 9142315Abstract: Methods and systems are disclosed for adjusting read/verify bias conditions for non-volatile memory (NVM) cells to improve performance and product lifetime of NVM systems. System embodiments include integrated NVM systems having a NVM controller, a bias voltage generator, and an NVM cell array. Further, the NVM systems can store performance degradation information and read/verify bias condition information within storage circuitry. The disclosed embodiments adjust read/verify bias conditions for the NVM cells based upon performance degradation determinations, for example, temperature-based performance degradation determinations.Type: GrantFiled: July 25, 2012Date of Patent: September 22, 2015Assignee: Freescale Semiconductor, Inc.Inventors: Fuchen Mu, Benjamin A. Schmid, Yanzhuo Wang
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Patent number: 9141119Abstract: Reducing output voltage ripple of power supplies. In some embodiments, an electronic circuit may include a first node configured to receive an input signal proportional to an output voltage produced by a power supply, a second node configured to receive a reference voltage configured to alternate between two voltage values during operation of the power supply, and a third node configured to output an enabling signal configured to control the operation of the power supply in response to a comparison between the input signal and the reference voltage. In other embodiments, a method may include turning on a power supply in response to a falling ripple being smaller than a first reference voltage value, and turning off the power supply in response to a rising ripple being greater than a second reference voltage value, where the second reference voltage value is smaller than the first reference voltage value.Type: GrantFiled: January 16, 2013Date of Patent: September 22, 2015Assignee: FREESCALE SEMICONDUCTOR, INC.Inventors: Walter L. Terçariol, Richard Titov Lara Saez, Alfredo Salvarani, Remerson Stein Kickhofel