Abstract:
PROBLEM TO BE SOLVED: To provide a system and a method which make it possible to correct a driver at a faster rate. SOLUTION: A power driver for driving a signal on a load uses a voltage- mode driver. A system processor generates commands indicating a programmed drive signal desired from the voltage-mode driver. A lead compensator determines a compensated command to compensate for an admittance function of the load. The compensated commands are coupled to the voltage-mode driver, so that the voltage-mode driver generates a voltage output based upon the compensated command. COPYRIGHT: (C)2003,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide an enhanced interconnection network technology for routing data packets. SOLUTION: The octagonal interconnection network is provided for routing data packets. The interconnection network comprises (1) eight switching circuits for transferring data packets with each other (2) eight sequential data links bidirectionally coupling the eight switching circuits in sequence to thereby form an octagonal ring configuration and (3) four crossing data links, wherein a first crossing data link bidirectionally couples a first switching circuit to a fifth switching circuit, a second crossing data link bidirectionally couples a second switching circuit to a sixth switching circuit, a third crossing data link bidirectionally couples a third switching circuit to a seventh switching circuit, and a fourth crossing data link bidirectionally couples a fourth switching circuit to a eighth switching circuit.
Abstract:
PROBLEM TO BE SOLVED: To provide a fluid filtering system and a method for being used during semiconductor processing.SOLUTION: A fluid filtering system filters ions and particles from fluid by a dual medium filter 18b when the fluid is supplied to a semiconductor wafer processing apparatus such as a semiconductor wafer cleaning apparatus. The fluid filtering system is characterized in that the dual medium filter 18b has a housing 44 equipped with an inlet 46 and an outlet 48, the inlet 46 is joined with a fluid supply source and the outlet 48 is joined with a semiconductor wafer manufacturing apparatus and the housing 44 includes an ion exchange medium 35 and a particle filtering medium 37. The ion exchange medium 35 removes ions from the fluid and the particle filtering medium 37 removes particles from the fluid.
Abstract:
PROBLEM TO BE SOLVED: To provide a system and method for analog control of directional motors and other loads. SOLUTION: Directional loads are operable in plural directions. For example, A directional motor can rotate in clockwise and anti-clockwise directions. A directional load driver generates an output signal that causes directional loads to operate in one of the directions, thereby giving required function. The required function is identified using input signals such as state encoding input signals or the like. The state encoding input signals can be received by the directional load driver via a single wire or a single input pin. Under the control of the directional load driver, the directional loads can perform any function among a variety of functions. In the examples of applications to automobiles, the directional loads can perform window opening and closing, door locking or unlocking, or door opening and closing. In the examples of other applications, the directional loads can be used for housing door locking, home automation, or controls in industries. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide signal modulation technology in which flexibility is improved. SOLUTION: The invention provides a data modulation method applicable to make data streams tend to have desired properties, useful for clock recovery, making signals more distinguishable, or enforcing run-length conditions. A stream of input data and a corresponding stream of output data grouped into elements of a finite field. Input elements of the input data are modified by a transform generating output elements of the output data, such that a current output element is linear combination of current input element and at least one previous output element. A multiplier applied to at least one previous output element is non-zero and non-unity element of the finite field. A set of initial conditions inherent to the transform is selected such that the output elements resulting from the transform tend to have the desired property. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To improve a write head in a hard disk drive system by providing impedance matching and a power amplification effect. SOLUTION: A write driver for driving a write current through a write head connected to the write head by an interconnect or flexible transmission line is provided. The write driver includes a circuit matching an output impedance of the write driver to the odd characteristic impedance of the interconnect and includes a current source generating a current output to the write head. The write driver provides a current amplification effect as the output current is half the write current driven through the write coil. The impedance matching circuit includes an output resistor with a resistance equal to the odd characteristic impedance of the interconnect. The write driver includes a voltage source that operates to maintain a voltage drop of zero on the output resistor during the initial period of twice the transmission delay of the interconnect. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide an improved FIR filter which is equipped with a lookup table. SOLUTION: In this single bit FIR filter, a calculation time is made to be minimum by storing outputs with respect to to accumulation and an output, or part of them in advance. COPYRIGHT: (C)2005,JPO&NCIPI