Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 8258853 | Power switch circuit for tracing a higher supply voltage without a voltage drop A power switch circuit includes a voltage selecting circuit, an auxiliary transistor and a control circuit. The control circuit includes an inverter, or a first inverter and a second inverter forming a latch. The power switch circuit is capable of tracing a higher s... | 09/04/2012 |
| 7746154 | Multi-voltage multiplexer system A multi-voltage multiplexer system includes multiple voltage inputs, each voltage input providing a different input voltage, and multiple control inputs operative to select one of the input voltages for output. Each of multiple transistors is connected to a differen... | 06/29/2010 |
| 7636007 | Low jitter high phase resolution PLL-based timing recovery system A low jitter, high phase resolution phase lock loop incorporating a ring oscillator-type VCO is designed and constructed to operate at a characteristic frequency M times higher than a required output clock frequency. Multi-phase output signals are taken from the VCO... | 12/22/2009 |
| 7471135 | Multiplexer circuit A multiplexer circuit provided herein includes a plurality of pass devices coupled in parallel between a power supply and a ground supply. According to one embodiment, each pass device may include a first pair of transistors, which is coupled in series between the p... | 12/30/2008 |
| 7436238 | Integrated voltage switching circuit An integrated circuit can be switched between operating modes without the need for a dedicated mode selection pin. A circuit for operation at a specified maximum supply voltage comprises first and second supply terminals, a first signal input for application of a re... | 10/14/2008 |
| 7432754 | Voltage control circuit having a power switch A voltage control circuit includes a first transistor coupled to a first voltage supply terminal having a first voltage, a second transistor coupled to the first transistor and a node, a third transistor coupled to a second voltage supply terminal and the node, wher... | 10/07/2008 |
| 7425844 | Input buffer for multiple differential I/O standards An input buffer circuit has a plurality of selectively enabled differential amplifier circuits, where each differential amplifier is configured for compatibility with a particular differential I/O standard and its corresponding input operating range. For example, th... | 09/16/2008 |
| 7411440 | System located in an integrated circuit for reducing calibration components An embodiment of this invention provides a circuit and method for reducing the number of electronic components needed to calibrate circuits on an IC. A multiplexer is located on the IC where the outputs of a plurality of circuits located on the IC are each connected... | 08/12/2008 |
| 7408397 | Digital-to-analog converter with programmable floating gate Systems and methods are discussed for using a floating-gate MOSFET as a programmable reference circuit. One example of the programmable reference circuit is a programmable voltage reference source, while a second example of a programmable reference circuit is a prog... | 08/05/2008 |
| 7385432 | Commutating phase selector A phase selector for selecting a differential output is provided. The phase selector can include two matched transistor circuits. A first transistor circuit can receive a first differential input signal whereas a second transistor circuit can receive a second differ... | 06/10/2008 |
| 7373575 | Method and apparatus for generating expect data from a captured bit pattern, and memory device using same Expect data signals are generated for a series of applied data signals having a known sequence to determine if groups of the data signals were properly captured. A first group of the applied data signals is captured, and a group of expect data signals are generated ... | 05/13/2008 |
| 7372683 | Over voltage detection circuit, and power source circuit, power supply system and electronic apparatus using the over voltage detection circuit An over voltage detection circuit, which is used in a power source, a power supply system, and an electronic apparatus, includes two voltage comparison circuits. A first comparison circuit, provided for high-speed signal responses, includes voltage dividing resistor... | 05/13/2008 |
| 7373569 | Pulsed flop with scan circuitry In one embodiment, a storage circuit comprises a first passgate having an input coupled to receive a signal representing a data input to the storage circuit and further having an output connected to a storage node in the storage circuit. The storage circuit also com... | 05/13/2008 |
| 7370214 | Automatically switching power supply sources for a clock circuit In one embodiment, a power supply switching circuit may automatically provide power to a clock circuit from one of an auxiliary power supply and a main power supply, based on a voltage of the main power supply. To provide automatic switching, a switch circuit couple... | 05/06/2008 |
| 7355435 | On-chip detection of power supply vulnerabilities On-chip sensor to detect power supply vulnerabilities. The on-chip sensor employs a sensitive delay chain and an insensitive delay chain to detect power supply undershoots and overshoots without requiring external off-chip components. Undershoots and overshoots outs... | 04/08/2008 |
| 7355881 | Memory array with global bitline domino read/write scheme A circuit for implementing memory arrays using a global bitline domino read/write scheme. The memory circuit includes a plurality of cells each configured to store a bit of data. The memory circuit further includes a plurality of local bitlines, wherein each cells i... | 04/08/2008 |
| 7332941 | Analog switch circuit and sample-and-hold circuit including the same First and second analog switches are connected in series between first and second nodes. One terminal of a third analog switch is connected to a series connection node of the first and second analog switches. The other terminal of the third analog switch is supplied... | 02/19/2008 |
| 7298181 | Highest supply selection circuit A power supply monitoring circuit that monitors and delivers the highest voltage power supply to an IC system includes a voltage comparator that receives two different power supply voltages, and outputs a first signal to the gate of a first switching transistor conn... | 11/20/2007 |
| 7286001 | High-frequency switching device and semiconductor device The first terminals of a plurality of resistor elements are connected to the intermediate connection points of a plurality of FETs connected in series, and a voltage, having a phase opposite to that of the voltage applied to the gate terminals of the plurality of FE... | 10/23/2007 |
| 7282958 | Multiplex (MUX) circuit having a single selection signal and method of generating a MUX output signal with single selection signal A MUX circuit may include a plurality of inverter pairs for receiving one of a first input signal and a second input signal to generate a plurality of inverter outputs. The circuit may also include a plurality of switches operatively connected to the plurality of in... | 10/16/2007 |
| 7274245 | Voltage transfer circuit A voltage transfer circuit outputs an equivalent to an input voltage when enabled. Otherwise, the transfer circuit is in standby and outputs an equivalent to a standby voltage (e.g., signal ground). The voltage transfer circuit includes a switching circuit, a standb... | 09/25/2007 |
| 7271641 | Self-repairable semiconductor with analog switching circuit A self-repairable semiconductor comprises a first device and a replacement device. A switching device selectively swaps the replacement device for the first device when the first device is non-operable. The switching device includes an analog switching circuit that ... | 09/18/2007 |
| 7262492 | Semiconducting device that includes wirebonds Some embodiments relate to a semiconducting device that includes a substrate, a die and an interconnect device. The die and interconnect device are attached to an upper surface of the substrate. The semiconducting device further includes a first wire that is bonded ... | 08/28/2007 |
| 7253457 | Semiconductor device with external terminals arranged symmetrically with respect to a normal external terminal arrangement A semiconductor device, which may be changed to a mirror package after the assembly without having to reinstall bonding wires, comprises: a plurality of fixed external terminals which include a power supply external terminal and a ground potential external terminal ... | 08/07/2007 |
| 7254371 | Multi-port multi-band RF switch Systems and methods are disclosed for sharing a network with two switching devices forming a single pole double throw (SPDT) switch. Two SPDT switches can also be used in a double pole double throw (DPDT) configuration that shares a network, thus reducing component ... | 08/07/2007 |
| 7250659 | Semiconductor component with ESD protection The semiconductor component has ESD protective elements configured outside the semiconductor body. The ESD protective elements connect an additional conductor track that carries a reference potential to conductor tracks of the leadframe. ESD protective structures in... | 07/31/2007 |
| 7250795 | High-speed, low-power input buffer for integrated circuit devices A high-speed, low-power input buffer for an integrated circuit device in which the input voltage (VIN) is coupled to both a pull-up and a pull-down transistor. In accordance with a specific embodiment, the input buffer utilizes a reference voltage input (VREF) durin... | 07/31/2007 |
| 7251112 | Battery protect circuit for switched circuit that switches between a supply and a battery A circuit for protecting a battery includes an n-well formed within a p substrate. A p-type resistor is formed with in the n well and has a connection to the battery. An n+ ring is also formed in the n well and substantially surrounds the p-type resistor. ... | 07/31/2007 |
| 7234070 | System and method for using a learning sequence to establish communications on a high-speed nonsynchronous interface in the absence of clock forwarding A memory system includes a memory hub controller that sends write data to a plurality of memory modules through a downstream data bus and receives read data from the memory modules through an upstream data bus. The memory hub controller includes a receiver coupled t... | 06/19/2007 |
| 7221192 | Voltage access circuit configured for outputting a selected analog voltage signal for testing external to an integrated circuit Access is provided to internal analog voltage signals on internal analog nodes of an integrated circuit, without distortion of the internal analog voltage signals. An integrated circuit includes a voltage access circuit having buffered multiplexer circuits in proxim... | 05/22/2007 |
| 7215143 | Input buffer for multiple differential I/O standards An input buffer circuit has a plurality of selectively enabled differential amplifier circuits, where each differential amplifier is configured for compatibility with a particular differential I/O standard and its corresponding input operating range. For example, th... | 05/08/2007 |
| 7215043 | Power supply voltage switch circuit A power supply voltage switch circuit for selecting a power supply voltage of an integrated circuit according to a first control signal. The power supply voltage switch circuit contains a high voltage selecting module for generating an output voltage according to th... | 05/08/2007 |
| 7212062 | Power supply noise insensitive multiplexer CMOS circuitry used to multiplex between data inputs suffers from high sensitivity to power supply noise, resulting in delay variations. By utilizing current controlled inverters in a multiplexer structure, power supply insensitivity can be achieved with either of t... | 05/01/2007 |
| 7212060 | Ground bounce protection circuit for a test mode pin A test-mode circuit allows the same pad of a semiconductor device to be used as a test pad during test operations and as an I/O pad during normal operations. The test-mode circuit is coupled between the pad and a reference signal (Vbg) of the device, and in response... | 05/01/2007 |
| 7206878 | Voltage level bus protocol for transferring data A bus protocol that allows a master to transfer the same data to multiple devices at the same time. More specifically, the bus protocol uses a particular voltage level to identify whether a device should receive the data. A controller is used for programming the vol... | 04/17/2007 |
| 7199635 | High-frequency switching device and semiconductor The first terminals of a plurality of resistor elements are connected to the intermediate connection points of a plurality of FETs connected in series, and a voltage, having a phase opposite to that of the voltage applied to the gate terminals of the plurality of FE... | 04/03/2007 |
| 7196551 | Current mode logic buffer Systems and methods provide current mode logic buffers and interface circuits. As an example, in accordance with an embodiment of the present invention, a CML buffer is disclosed that receives and/or provides multiple signal pairs having different common mode voltag... | 03/27/2007 |
| 7193437 | Architecture for a connection block in reconfigurable gate arrays An optimized architecture to implement connections between logic blocks and routing lines in reconfigurable gate arrays including connection blocks to connect inputs and outputs of different logic elements by means of connection wires, each connection block includin... | 03/20/2007 |
| 7176749 | Avoiding excessive cross-terminal voltages of low voltage transistors due to undesirable supply-sequencing in environments with higher supply voltages Ensuring sufficient bias current is provided to a portion of a circuit containing low voltage transistors operating with a high supply voltage. Such a sufficient bias current may be ensured by generating a primary bias current from a low supply voltage and a backup ... | 02/13/2007 |
| 7173466 | Timing signal generating circuit having simple configuration with low supply voltage and generating timing signals with high accuracy A timing signal generating circuit receives multiphase input signals and generates a signal having a phase intermediate therebetween, and weighting is applied to the multi-phase input signals by using a variable impedance circuit. The timing signal generating circui... | 02/06/2007 |
