|
Match
|
Document |
Document Title |
|
|
7612584 |
Simultaneous LVDS I/O signaling method and apparatus
First and second devices may simultaneously communicate bidirectionally with each other using only a single pair of LVDS signal paths. Each device includes an input circuit and a differential...
|
|
|
7610416 |
Systems and methods for controlling rise and fall times of USB signals
Systems and methods for controlling the rise and fall times of USB signals for USB devices and peripherals are provided. The rise and fall times of USB peripherals can be controlled, or changed, in...
|
|
|
7605635 |
Threshold control circuitry for multiple current signal receivers
Calibration circuitry and method for maintaining constant signal detection thresholds for multiple signal receivers that receive data signals in the form of current signals. A value of one of the...
|
|
|
7605610 |
Differential current driving type transmission system
There is provided a differential current driving current type transmission system. The system includes a transmission line pair for transmitting a signal by a differential scheme; a transmission...
|
|
|
7598785 |
Apparatus and method for adjusting slew rate in semiconductor memory device
A slew-rate adjusting apparatus for use in a semiconductor memory device includes: a slew-rate modulation signal generator for generating a slew-rate modulation signal according to the number of...
|
|
|
7598780 |
Clock buffer
A clock buffer has a band-pass frequency characteristic, in which a pass band of the buffer includes a fundamental frequency of a clock and a gain for attenuating signals, that is, a gain of less...
|
|
|
7595794 |
Circuit having source follower and semiconductor device having the circuit
When a potential of a power supply line varies according to a flowing current, the gate-source voltage Vgs of a transistor also varies, leading to variations in the constant current between each...
|
|
|
7595745 |
Circuit for converting a voltage range of a logic signal
In a circuit to convert a first logic signal having a first range to a second logic signal having a second range, a switch selectively couples an output node to a first reference voltage when the...
|
|
|
7595664 |
Repeater circuit having different operating and reset voltage ranges, and methods thereof
A circuit for assisting signal transitions on a wire, and a method thereof. A first subcircuit causes a first transistor that is coupled to the circuit's output to turn on during a rising...
|
|
|
7595663 |
Interface circuit
An interface circuit is provided for use in a semiconductor device which transmits and receives a signal to and from the outside. The interface circuit includes a signal input/output terminal for...
|
|
|
7595657 |
Dynamic dual control on-die termination
Controlling on-die termination on a bi-directional single-ended data bus carrying data between a controller and a memory device. The controller and the memory device respectively include input...
|
|
|
7592839 |
Repeater circuit with high performance repeater mode and normal repeater mode, wherein high performance repeater mode has fast reset capability
Repeater circuit with high performance repeater mode and normal repeater mode, wherein high performance repeater mode has fast reset capability, is provided and described. In one embodiment,...
|
|
|
7589564 |
Method of maintaining input and/or output configuration and data states during and when coming out of a low power mode
A semiconductor integrated circuit device upon exiting from a low power mode, wakes up and re-initializes logic circuits so as to restore previous logic states of internal registers without...
|
|
|
7589560 |
Apparatus for configuring I/O signal levels of interfacing logic circuits
Apparatus for configuring input/output signal levels of interfacing logic circuits operating at different voltage levels comprises: a logic circuit for operating at a first voltage level; a bank of...
|
|
|
7589559 |
Current mode circuitry to modulate a common mode voltage
In some embodiments, a chip includes transmitters to transmit differential signals on conductors; and current mode circuitry to selectively modulate a common mode voltage of the differential...
|
|
|
7587537 |
Serializer-deserializer circuits formed from input-output circuit registers
Input-output circuitry for integrated circuits such as programmable logic device integrated circuits is provided. The input-output circuitry can be configured to operate in a single-ended data mode...
|
|
|
7586325 |
Integrated circuit having independent voltage and process/temperature control
In one embodiment, an integrated circuit has configurable application circuitry that operates at any one of multiple available power supply voltages. PT-control circuitry, operating at a PT...
|
|
|
7583105 |
Pull-up circuit
A pull-up circuit comprises an operational amplifier which forms part of a feedback circuit, acting to bring a pull-up circuit output equal to a reference voltage input. The pull-up circuit may...
|
|
|
7583104 |
Maintaining input and/or output configuration and data state during and when coming out of a low power mode
A semiconductor integrated circuit device upon exiting from a low power mode, wakes up and re-initializes logic circuits so as to restore previous logic states of internal registers without...
|
|
|
7579875 |
Interface circuit and control method thereof
This invention provides an interface circuit for detecting that a DQS signal from a DDR SDRAM is at an intermediate potential. An interface circuit is connected to at least a signal line which...
|
|
|
7579873 |
Slew rate control circuit for small computer system interface (SCSI) differential driver
An interface driver circuit comprises N cascaded delay cells, each including a data bit input, a delayed data bit output that communicates with the data bit input of an adjacent one of the N...
|
|
|
7579871 |
Current drive circuit and method of boosting current using the same
A current drive circuit includes a differential voltage detector configured to detect a voltage level of a drive node and configured to compare the voltage level of the drive node with a voltage...
|
|
|
7576566 |
Level-conversion circuit
An independent control signal is transmitted to each of a driver control unit and an output transistor, so as to prevent the driver control unit and the output transistor from being made to operate...
|
|
|
7574549 |
Bridge design for SD and MMC multiplexing
A method for determining direction of signal transmission in a bi-directional signal line, including sampling data signals at two terminals, A and B, enabling data flow from A to B when data flow...
|
|
|
7573304 |
Input/output circuit and input/output device
An input/output circuit has an output terminal, a first transistor, a second transistor, a pulse generator, and a bias circuit. The first transistor drives the output terminal based on a...
|
|
|
7573298 |
Signal transmission circuit, data transfer control device and electronic device
A signal transmission circuit transmitting signals via first and second signal lines that provide a differential pair, includes: a current source installed between a first power source and a given...
|
|
|
7573289 |
Impedance matching circuit and semiconductor memory device with the same
An impedance matching circuit includes a code generating unit for generating a calibration code in response to a reference voltage and a voltage on a node, a calibration resistance unit for...
|
|
|
7573287 |
Variable drive module for driving a load
A drive module for driving a load is disclosed. In one embodiment, the drive module includes an output terminal for connecting the load. A first control terminal is provided for applying a first...
|
|
|
7567628 |
Symmetric differential slicer
A self-biasing slicer includes a self-biased differential transistor pair. As a result of the self-biasing, the slicer may receive input signals without the use of AC coupling. That is, a...
|
|
|
7567105 |
High speed controller area network receiver having improved EMI immunity
A CAN receiver architecture design that provides better immunity against EMI interference than conventional designs is disclosed herein. This CAN receiver includes a voltage divider network...
|
|
|
7564268 |
Low power logic output buffer
A low power logic output buffer includes first and second logic gates, each having an input and an output. The input of the first logic gate receives a first logic signal, and the input of the...
|
|
|
7557615 |
High-speed serial data transmitter architecture
Serial data transmitter circuitry on a PLD includes a number of features that enable the transmitter to support many different communication protocols under a wide range of circuit conditions....
|
|
|
7554353 |
Method of controlling on-die termination of memory devices sharing signal lines
A method of controlling On-Die Termination (ODT) resistors of memory devices sharing signal lines is provided. The ODT controlling method comprises setting an ODT control enable signal of each of...
|
|
|
7551000 |
Differential bidirectional transceiver and receiver therein
A differential bidirectional transceiver is provided. The differential bidirectional transceiver includes a first current transmitter, a second current transmitter and a receiver. The first current...
|
|
|
7550993 |
Glitch reduced compensated circuits and methods for using such
Various embodiments of the present invention provide systems and methods for glitch reduced circuits. As one example, a glitch reduced, variable width driver circuit is disclosed. Such circuits...
|
|
|
7545176 |
Energy-saving circuit and method using charge equalization across complementary nodes
An energy-saving circuit and method using charge equalization across complementary nodes reduces power consumption in memory circuits and other circuits such as wide multiplexers having...
|
|
|
7545164 |
Output driver for controlling impedance and intensity of pre-emphasis driver using mode register set
An output driver controls impedance using a mode register set. The output driver includes a main driving circuit that outputs and drives a main signal based on a data signal to a predetermined...
|
|
|
7538578 |
Multiple data rates in programmable logic device serial interface
A serial interface for a programmable logic device can be operated according to various communications protocols and includes both a receiver portion and a transmitter portion. The receiver portion...
|
|
|
7538573 |
Dynamic output buffer circuit
A dynamic output buffer circuit performs an impedance matching function and a pre-emphasis function by using input and output signals, and consumes relatively less power, occupies a relatively...
|
|
|
7535258 |
Programmable current output and common-mode voltage buffer
A buffer for a programmable logic device has programmable current sink and source circuitry and an independently programmable common-mode voltage reference source. An amplifier, responsive to a...
|
|
|
7535257 |
Receiver circuit, interface circuit, and electronic instrument
A receiver circuit includes: a current/voltage conversion circuit which performs a current/voltage conversion based on current which flows through the differential signal lines and outputs voltage...
|
|
|
7535256 |
Cross-level digital signal transmission device
A cross-level digital signal transmission device between two systems for cross-level digital signal transmission. Bi-directional symmetrical transmission is achieved without using additional...
|
|
|
7535251 |
Semiconductor device and impedance adjusting method thereof
There is provided a semiconductor device including an output buffer circuit which reduces an area occupied by a circuit for impedance adjustment and allows high-speed impedance adjustment. In an...
|
|
|
7533208 |
Hot plug control apparatus and method
An apparatus for controlling a hot plug bus slot on a bus has an input for receiving a set of float signals (i.e., the set may have one or more float signals), and a driver having an output...
|
|
|
7532035 |
Address transition detector for fast flash memory device
An address transition detector circuit includes an input node, an output node, a bandgap reference node, and P bias and N bias nodes having voltages derived from the bandgap reference node. First...
|
|
|
7528635 |
Multitap fractional baud period pre-emphasis for data transmission
Pre-emphasis circuitry and methods for signal transmission provide multiple levels of output signal amplification over one or more baud periods after an input signal transition. The multiple,...
|
|
|
7528629 |
Low-power low-voltage multi-level variable-resistor line driver
A low-power multi-level pulse amplitude modulation (PAM) line driver using variable resistors for transmitting digital data over controlled-impedance transmission lines.
|
|
|
7521968 |
Slew rate control for driver circuit
The slew rate of signals output from an integrated circuit is selectively controlled to optimize the quality of the output data signal depending upon whether the communication channels require a...
|
|
|
7521967 |
Methods of reducing data dependent noise
Techniques for controlling a driver to reduce data dependent noise, such as simultaneous switching effects and cross-talk effects. A plurality of drivers may each receive a data segment to transmit...
|
|
|
7514961 |
Logic circuits
A logic circuit includes a logic unit, a driving unit, and a voltage level adjuster. The logic unit includes an output node having a logic state, the logic unit being coupled to a first voltage...
|