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Class Information
Number: 713/500
Name: Electrical computers and digital processing systems: support > Clock, pulse, or timing signal generation or analysis
Description: Subject matter including generation, division or distribution of a clock signal, pulse signal, or timing signal in the digital data processing system from one or more sources into a group of continuous and successive time increments; or including event timing and counting, or correction of a clock signal, pulse signal, or timing signal.

Sub-classes under this class:

Class Number Class Name Patents
713/503 Correction for skew, phase, or rate 987
713/502 Counting, scheduling, or event timing 1,009
713/501 Multiple or variable intervals or frequencies 1,135

Patents under this class:

Patent Number Title Of Patent Date Issued
8713347 Apparatus and method for masking a clock signal Apr. 29, 2014
8713346 Resuming piecewise calibration of a real-time-clock unit after a measured offset that begins at the next calibration period Apr. 29, 2014
8713345 Apparatus with a local timing circuit that generates a multi-phase timing signal for a digital signal processing circuit Apr. 29, 2014
8710932 Signal processing device and method for providing oscillating signal in the signal processing device Apr. 29, 2014
8707079 Method and apparatus for transmitting data Apr. 22, 2014
8707077 Method and apparatus for time synchronisation in wireless networks Apr. 22, 2014
8707001 Method and system for measuring memory access time using phase detector Apr. 22, 2014
8706268 Asynchronous control of machine motion Apr. 22, 2014
8704805 System and method for handling image data transfer in a display driver Apr. 22, 2014
8694819 System and method for gradually adjusting a virtual interval timer counter value to compensate the divergence of a physical interval timer counter value and the virtual interval timer counter Apr. 8, 2014
8693685 Quantum cryptography apparatus Apr. 8, 2014
8689036 Systems and methods for synchronizing operations among a plurality of independently clocked digital data processing devices without a voltage controlled crystal oscillator Apr. 1, 2014
8687799 Data processing circuit and control method therefor Apr. 1, 2014
8683255 Circuit and method for controllably delaying an input signal, and microscope, and method for controlling a microscope Mar. 25, 2014
8683254 Systems and methods for precise event timing measurements Mar. 25, 2014
8683253 Optimized synchronous strobe transmission mechanism Mar. 25, 2014
8677173 Method and circuit for trimming an internal oscillator of a USB device Mar. 18, 2014
8677172 Method and system for correcting error in a PLL generated clock signal using a system clock of lower frequency and/or accuracy Mar. 18, 2014
8677171 Method for controlling the dynamic power signature of a circuit Mar. 18, 2014
8677170 Method for generating a clock signal Mar. 18, 2014
8667320 Deriving accurate media position information Mar. 4, 2014
8667317 Circuitry including an RF front end circuit Mar. 4, 2014
8667316 Precision synchronisation architecture for superspeed universal serial bus devices Mar. 4, 2014
8667315 Synchronization control apparatus, information processing apparatus, and synchronization management method for managing synchronization between a first processor and a second processor Mar. 4, 2014
8661284 Method and system to improve the operations of a registered memory module Feb. 25, 2014
8656207 Method for modeling variation in a feedback loop of a phase-locked loop Feb. 18, 2014
8656205 Generating reference clocks in USB device by selecting control signal to oscillator form plural calibration units Feb. 18, 2014
8656203 Fractional frequency division or multiplication by using an oversampled phase rotator for reducing jitter Feb. 18, 2014
8650430 Enabling a peripheral device to transmit a request for interrupt processing to a host when no clock signal is output from the host device Feb. 11, 2014
8648952 Timing generator and method of generating timing signals Feb. 11, 2014
8645743 Mechanism for an efficient DLL training protocol during a frequency change Feb. 4, 2014
8645742 Semiconductor device operating according to an operation clock and having a serial communication interface performing external communications according to a unit transfer time based on the ope Feb. 4, 2014
8645741 Method and system for predicting a latency spike category of audio and video streams to adjust a jitter buffer size accordingly Feb. 4, 2014
8631266 Semiconductor memory device and method of controlling the same Jan. 14, 2014
8627134 Semiconductor apparatus and local skew detecting circuit therefor Jan. 7, 2014
8627133 Virtual machine boot speed-up by clock acceleration Jan. 7, 2014
8626966 Embedded clock recovery Jan. 7, 2014
8625385 Data capture system and method, and memory controllers and devices Jan. 7, 2014
8621253 Processor boost based on user interface demand Dec. 31, 2013
8621109 Adaptable management in sync engines Dec. 31, 2013
8615674 Method and apparatus for the realization of a failsafe time function Dec. 24, 2013
8607089 Interface for storage device access over memory bus Dec. 10, 2013
8601306 Decryption of configuration data for multi-die integrated circuits Dec. 3, 2013
8601231 Semiconductor memory asynchronous pipeline Dec. 3, 2013
8601181 System and method for read data buffering wherein an arbitration policy determines whether internal or external buffers are given preference Dec. 3, 2013
8595543 Method and circuit for trimming an internal oscillator of a USB device according to a counting number between a first and second clock count value Nov. 26, 2013
8595540 Rendering a content stream based on a digital clock generated based on timing information Nov. 26, 2013
8595539 Display apparatus for automatically adjusting quantization clock phase according to different threshold values in a display apparatus Nov. 26, 2013
8595538 Single-clock-based multiple-clock frequency generator Nov. 26, 2013
8595536 Rate verification of an incoming serial alignment sequence Nov. 26, 2013

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