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7701305 Frequency jittering control for varying the switching frequency of a power supply  
A frequency jittering circuit modulates a hysteretic band of an oscillator such that the clock generated by the oscillator has a jitter frequency, and thus a switching mode power supply operative...
7702945 Semiconductor device and communication control method  
The present invention relates to a technique capable of establishing communications between cores, which can provide a large degree of freedom of clock frequencies settable in each core, and thus...
7698611 Functional frequency testing of integrated circuits  
A method and circuits for testing an integrated circuit at functional clock frequency by providing a test controller generating control signals that assure proper latching of test patterns in scan...
7698588 Circuit and related method for synchronizing data signals to a core clock  
The present invention discloses, in one aspect, a synchronizing circuit for synchronizing transmitted data. In one embodiment, the synchronization technique comprises a subsystem configured to...
7694164 Operating system-independent method and system of determining CPU utilization  
A method and device are provided to monitor clock control signals from a CPU core; and calculate a time period during a sampling interval that the CPU core was used to perform work based on the...
7685458 Assigned task information based variable phase delayed clock signals to processor cores to reduce di/dt  
Systems and methods for managing power consumption in an integrated circuit to reduce the rate of change of current (di/dt) in the integrated circuit. One embodiment comprises a system having...
7681062 Synchronous type semiconductor device for high speed data processing  
Disclosed is a synchronous semiconductor device including clock generation circuit that frequency divides a clock signal (PCLK) input from an input buffer and generates first and second internal...
7679408 Glitchless clock multiplexer optimized for synchronous and asynchronous clocks  
A circuit for switching clock signals with logic devices using a glitchless clock multiplexer optimized for synchronous and asynchronous clocks. The circuit comprises an asynchronous clock group...
7676679 Method for self-synchronizing time between communicating networked systems using timestamps  
Nodes in a network include a pseudo-timestamp in messages or packets, derived from local pseudo-time clocks. When a packet is received, a first time is determined representing when the packet was...
7669072 Clock circuitry architecture to improve electro-magnetic compatibility and optimize peak of currents in micro-controller  
A system comprises a central processing unit and a set of peripheral units accessible by the CPU and being able to be driven by the same clock source. At least one programmable delay line is...
7661011 Method and apparatus for a variable processing period in an integrated circuit  
The invention is a system for modifying the processing period in a digital logic module. The invention comprises the following. A processing circuit is configured to receive an input in order to...
7661008 Real time clock circuit having an internal clock generator  
Under the present invention a real time clock circuit, within a set-top box, is provided with an internal clock generator for generating multiple clock signals. Once generated, a first clock...
7661009 Apparatus and methods for discriminating late software commands sent to hardware  
Apparatus and methods for discriminating late software commands sent to hardware from software executed by a processor. The apparatus, in particular, includes a storage device configured to...
7657775 Dynamic memory clock adjustments  
Methods, circuits, and apparatus for changing a frequency of a clock signal provided to a graphics memory while reducing any resulting visual glitch or disturbance on a monitor. A specific...
7657772 Thermally aware integrated circuit  
An integrated circuit having a temperature sensitive circuit (TSC) to generate a signal indicative of the substrate temperature near the TSC. The integrated circuit has circuitry configured to...
7657758 Processing apparatus and integrated circuit to prevent illicit access and reverse engineering  
A processing apparatus including an internal circuit having a CPU and internal devices and an external circuit including external devices provided externally of the internal circuit, and the like,...
7650523 Interface apparatus and method for synchronization of data  
An interface apparatus is provided having a first register device and a second register device, which is connected in parallel with it. The register devices are configured to receive a data word....
7650525 SPI-4.2 dynamic implementation without additional phase locked loops  
A method and apparatus for receiving clocked data signals such as SPI-4.2 data signals is described. In one embodiment, each data signal lane is deskewed with respect to the clock by oversampling...
7647512 Method and apparatus for switching performance  
A method and an apparatus for switching performance are provided. The method includes: providing a performance adjustable circuit working at a specific threshold frequency; determining a working...
7642876 PWM generator providing improved duty cycle resolution  
A PWM generator system provides improved duty cycle resolution using a sub-cycle generator for generating a sub-cycle with a period that is a small fraction of the maximum PWM period to be...
7644296 Programmable logic device integrated circuits with configurable dynamic phase alignment circuitry  
Programmable logic device integrated circuits are provided that have configurable receivers with dynamic phase alignment capabilities. In situations in which receivers require dynamic phase...
7640124 Delay failure test circuit  
In a delay failure test circuit, a delay failure test between two clock domains among a plurality of clock domains having different operation clock rates is performed. The delay failure test...
7640446 System-on-chip power reduction through dynamic clock frequency  
A dynamic clock frequency module for a system-on-chip (SOC) including modules that communicate over a system bus includes a request evaluation module that receives requests to utilize the system...
7640449 Systems and methods for dynamic clock frequencies for low power design  
Circuits for generating multiple clocks for computer systems are disclosed. One such system includes a circuit configured to generate a core clock, a system bus clock, and a peripheral clock. The...
7636865 Information processing apparatus and method of setting frequency of clock to be supplied from processor  
An information processing apparatus includes a processor, and a detector to detect the operation clock frequency set for a unit connected to a bus. The frequency of a clock to be supplied from the...
7634678 Application software initiated speedup  
An instruction, processor, system, and method allow application level software to explicitly request a temporary performance boost, from computing hardware. Advanced management of a working...
RE41031 Frequency control system that stabilizes an output through both a counter and voltage-controlled oscillator via sampling a generated clock into four states  
A frequency control system includes a voltage-controlled oscillator, a sampling circuit for sampling a clock signal produced by the oscillator for two consecutive transitions of an unstable...
7624297 Architecture for a physical interface of a high speed front side bus  
A high speed computer processor system includes a high speed interface for a graphics processor. In a preferred embodiment, the high speed interface includes a front side bus (FSB) that interfaces...
7620788 Memory device sequencer and method supporting multiple memory device clock speeds  
A sequence state matrix has a plurality of time slots for storing a plurality of memory device signals. The memory device signals are loaded into the matrix by a sequencer load unit, which loads...
7620838 Semiconductor integrated circuit and image processing system using the same  
A circuit system is provided capable of improving the throughput thereof by eliminating the operational constraint that if the operating frequency of a content addressable memory is lower than the...
7617431 Method and apparatus for analyzing delay defect  
The apparatus for analyzing a delay defect of the present invention obtains the RC of the maximal incidence among region codes (RCs) to which check circuits detecting errors caused with gradual...
7613944 Programmable local clock buffer capable of varying initial settings  
A programmable local clock buffer for integrated circuit devices which is capable of varying initial settings is provided. The illustrative embodiments allow a single type of local clock buffer...
7606952 Method for operating serial flash memory  
A transmission method for a serial periphery interface (SPI) serial flash includes the steps of providing a first system clock signal and transmitting a plurality of data strings with each two...
7600140 Logic circuit system and method of changing operating voltage of a programmable logic circuit  
A logic circuit system with power consumption that is reduced by automatically varying the clock frequency and operating voltage according to processing capability imposed on programmable logic...
7598959 Display controller  
Apparatus and systems, as well as methods and articles, may operate to update video display pixels. A video display bus can communicate data to a video display according to specified clock...
7600145 Clustered variations-aware architecture  
Methods and apparatus to provide a clustered variations-aware architecture are described. In one embodiment, one or more variations within a clock domain are detected and utilized to adjust a...
7599459 Receiving apparatus, data transmission system and receiving method  
A receiving apparatus receives data sequences, each of which includes plural data blocks, from plural transmission lines, respectively. The apparatus includes plural elastic buffers and a deskew...
7590880 Circuitry and method for detecting and protecting against over-clocking attacks  
The present invention is directed to circuitry for detecting and protecting against over-clocking attacks on hardware modules. The circuitry preferably comprises a test signal, a delay path for...
7587622 Power management of components having clock processing circuits  
A method and system for managing power consumption of a component that employs a clock processing circuit to produce a processed clock signal used by the component from a clock signal supplied to...
7581132 System and method for configuring a microcontroller clock system  
A method is provided for configuring a microcontroller clock system that includes a main oscillator, a phase locked loop, and a backup oscillator. According to the method, the main oscillator and...
7577254 Detector autocalibration in QKD systems  
A method (300) of performing photon detector autocalibration in quantum key distribution (QKD) system (200) is disclosed. The method (300) includes a first act (302) of performing a detector gate...
7574613 Scaling idle detection metric for power management on computing device  
A component of a computing device such as a processor is operated based on a clock signal oscillating at a frequency. Power management for the computing device is performed by adjusting the...
7571342 Processor system, instruction sequence optimization device, and instruction sequence optimization program  
To reduce power consumption of a processor system including a plurality of processors without degradation of the processing ability, a flag detecting section detects an assignment control flag and...
7571407 Semiconductor integrated circuit and method of testing delay thereof  
A semiconductor integrated circuit comprises: a first area, formed on a semiconductor chip, which operates at a first predetermined voltage and a first predetermined frequency; a second area,...
7568118 Deterministic operation of an input/output interface  
In one embodiment, the present invention includes a method for receiving data from a second device in a first device, forwarding the data from an input/output (I/O) clock domain to a system clock...
7562247 Providing independent clock failover for scalable blade servers  
Methods and systems are disclosed for providing independent clock failover for scalable blade servers that include assigning a server blade to one of a plurality of clock failover groups,...
7558979 Methods for determining simultaneous switching induced data output timing skew  
A method of determining timing skew between data outputs of a memory device can include writing a predetermined data pattern to a memory device at a first operational frequency that is less than a...
7552446 Methods and apparatus for a timer event service infrastructure  
Complex software systems often require time-based processing, such as delayed or periodic timer event handling. A timer service provides an Application Programming Interface (API) for managing...
7551739 System and method for container monitoring, real time authentication, anomaly detection, and alerts  
An invention is provided for monitoring an item, such as a container. The invention includes a computer in communication with a receiver that receives signals from a remote source. A transmitter...
7546481 Clock control circuit that generates and selects one of a divided clock signal and a multiplied clock signal as a bus clock signal  
A clock control circuit including a divider unit for dividing a master clock signal at a falling timing of the same to generate a divided clock signal, a multiplier unit for multiplying the master...