摘要:
A clutch assembly that includes an input member rotatable about an axis, an output member rotatable about the axis, and an engagement member having a portion between the input and output members. The engagement member is operable to selectively couple the input and output members together for co-rotation. The clutch assembly further includes a blocking member having a base and a projection. The projection is coupled to the engagement member to substantially prevent the engagement member from coupling the input and output members together for co-rotation when the input member rotates in a first direction relative to the output member, while allowing the engagement member to couple the input and output members lor together co-rotation when the input member rotates in a second direction relative to the output member.
摘要:
A system comprises a master device and a plurality of memory devices coupled to the master device by an interconnect in an embodiment. The master device obtains a plurality of values representing reference voltage values and selects a first value in the plurality of values representing reference voltage values to generate an internal reference voltage value when reading data from a selected memory device in the plurality of memory devices. A method comprises obtaining a plurality of values representing reference voltages for a plurality of memory devices in an embodiment. A first value is selected in the plurality of values representing reference voltages. A reference voltage value is adjusted in response to the first value to an adjusted reference voltage value. Data is transferred to a selected memory device in the plurality of memory devices using the adjusted reference voltage value.
摘要:
A high frequency bus system insures uniform arrival times of high-fidelity signals to the devices on the high frequency bus, despite the use of the bus on modules and connectors. A first bus segment has one or more devices connected to it between a first and a second end. A second bus segment which has no devices connected to it. The first end of the first segment and second end of the second segment are coupled in series to form a chain of segments and when two signals are introduced to the first end of the second bus segment at substantially the same time, they arrive at each device connected to the first bus segment at substantially the same time.
摘要:
A current control circuit that employs a magnetic amplifier and an active feedback circuit. The feedback circuit establishes the effective operating current of the amplifier at a fixed point. The magnetic amplifier includes a pair of oppositely wound gate windings, a bias winding and a control winding. The gate windings are driven by an oscillator driver that generates a gate winding current and a gate winding voltage. A reference voltage and the gate winding voltage are applied to a feedback amplifier and the feedback circuit. When the gate winding voltage becomes equal to the reference voltage, the feedback circuit is stable and the gate winding current is set to a desired zero current operating point.
摘要:
A connector with a staggered contact design is described. The connector comprises a first row of connector pins, the connector pins alternately proximal pins and distal pins. The connector further comprises a second row of connector pins alternately proximal pins and distal pins. The distal pins of the connector carry the signals, while the proximal pins are ground or power signals.
摘要:
A high frequency bus system which insures uniform arrival times of high-fidelity signals to the devices on the high frequency bus, despite the use of the bus on modules and connectors. A high frequency bus system includes a first bus segment having one or more devices connected between a first and a second end. The first bus segment has at least a pair of transmission lines for propagating high frequency signals and the devices are coupled to the pair of transmission lines. The high frequency bus system also includes a second bus segment which has no devices connected to it. The second bus segment also has at least a pair of transmission lines for propagating high frequency signals. The first end of the first segment and second end of the second segment are coupled in series to form a chain of segments and when two signals are introduced to the first end of the second bus segment at the substantially the same time, they arrive at each device connected to the first bus segment at substantially the same time. Also, when two signals originate at a device connected to the first bus segment at substantially the same time, they arrive at the first end of the second bus segment at substantially the same time. Uniform arrival times hold despite the use of connectors to couple the segments together, despite the segments being located on modules, without the need for stubs, despite the presence of routing turns in the segments and despite the type of information, such as address, data or control, carried by the signals.
摘要:
An apparatus (11) for processing a sample, circuit board (8008) suited to use in such an apparatus and a method of processing are provided in which the apparatus (11) is provided with alignment features to assist in provided the circuit board and a sample cartridge (9) in the correct position relative to one another. In this way, the plurality of sections for processing a sample in the cartridge (9) are positioned against a plurality of elements, such as a heater (4) for heating the sample cartridge (9) or an electrical contact (EP1-EP4) for powering features on the sample cartridge (9), correctly and can operate independently of one another.
摘要:
An extended USB plug connector includes a connector substrate including a frontend having a first set of electrical contact pins disposed thereon and a backend having a second set of electrical contact pins disposed thereon. The first set includes a first row of electrical contact pins disposed on a top surface of the connector substrate and a second row of electrical contact pins disposed in parallel with the first row of electrical contact pins and interior to the first row of electrical contact pins, where the second row includes more electrical contact pins than the first row. The second set of electrical contact pins includes a number of electrical contact pins equal to the first row and second row of electrical contact pins in total. The second set of electrical contact pins are used to connect to corresponding electrical contact pads disposed on a printed circuit board assembly having a USB controller and flash memory devices disposed thereon.
摘要:
A wearable light ring used to illuminate a working area while allowing the user to hold a tool with the same hand. The battery powered ring including an LED and control mechanism. The LED positioned on the light ring as to direct most of the light towards the fingertip allowing the user to simultaneously work with a tool and illuminate the working area with one hand. The light ring also having a mode of operation that filters UV light to prevent curing of composite materials.
摘要:
An apparatus for controlling a dynamic random access memory (DRAM), the apparatus comprising an interface to transmit, over a first plurality of wires, to the DRAM a first code to indicate that first data is to be written to the DRAM and a column address to indicate a column location of a memory core in the DRAM where the first data is to be written. The interface is further to transmit a second code to indicate whether mask information for the first data will be sent to the DRAM. If the second code indicates that mask information will be sent, a portion of the column address and a portion of the mask information are sent after the second code is sent. The interface is further to transmit to the DRAM, over a second plurality of wires separate from the first plurality of wires, the first data.