760results about How to "High speed transmission" patented technology

A semiconductor production system has a semiconductor manufacturing apparatus having an exposure unit, a control unit for controlling the exposure unit and a storage device; a semiconductor inspection apparatus having an observation unit, a control unit for controlling the observation unit and a storage device; and a storage device commonly used by the semiconductor manufacturing apparatus and the semiconductor inspection apparatus. The manufacturing apparatus, the inspection apparatus and the commonly used storage device are interconnected via a storage area network. With the semiconductor manufacturing apparatus and the storage device linked together via the storage area network, a large volume of image data or design data can be communicated at high speed, thus improving the system throughput.

[Problems] To realize a reliable and stable transfer of digital data that does not require a reference clock and a handshake operation. [Means for Solving the Problem] The present invention provides a digital data transfer method for alternately and periodically transferring first information and second information respectively in a first period and in a second period, wherein: an amount of information of the first information per unit time in the first period is greater than an amount of information of the second information per unit time in the second period; and the second information in the first period is transferred as pulse-width-modulated serial data.

In a memory card including an IC card chip which can store and execute an application program, a flash memory chip which can store confidential data relating to the application program, and a controller chip which is connected to the chips, the IC card chip performs verification of a host apparatus, and the controller chip permits transmission of the confidential data between the flash memory chip and the host apparatus when the host apparatus is authenticated through the verification.

[Problems] To realize a reliable and stable transfer of digital data that does not require a reference clock and a handshake operation.[Means for Solving the Problem] The present invention provides a digital data transfer method for alternately and periodically transferring first information and second information respectively in a first period and in a second period, wherein: an amount of information of the first information per unit time in the first period is greater than an amount of information of the second information per unit time in the second period; and the second information in the first period is transferred as pulse-width-modulated serial data.

In order to reduce interference between cells through hopping and use frequencies in a good propagation situation, a scheduler section 102 carries out scheduling for determining to which user data should be sent using CQI from each communication terminal apparatus, selects a user signal to be sent in the next frame and determines in which subcarrier block the data should be sent. An MCS decision section 103 selects a modulation scheme and coding method from the CQI of the selected user signal. A subcarrier block selection section 110 selects a subcarrier block instructed by the scheduler section 102 for each user signal. For the respective subcarrier blocks, FH sequence selection sections 111-1 to 111-n select hopping patterns. A subcarrier mapping section 112 maps the user signal and control data to subcarriers according to the selected hopping pattern.

A memory system of a high-speed operation can be realized by reducing an influence of reflection signals etc. caused by branching and impedance mismatching in various wirings between a memory controller and a memory module, and an influence due to transmission delays of data, command / address, and clocks in the memory module. To this end, a memory system comprises a memory controller and a memory module mounted with DRAMs. A buffer is mounted on the memory module. The buffer and the memory controller are connected to each other via data wiring, command / address wiring, and clock wiring. The DRAMs and the buffer on the memory module are connected to each other via internal data wiring, internal command / address wiring, and internal cock wiring. The data wiring, the command / address wiring, and the clock wiring may be connected to buffers of other memory modules in cascade. Between the DRAMs and the buffer on the memory module, high-speed data transmission is implemented using data phase signals synchronous with clocks.

A re-transmission controlling method and a wireless communication terminal are provided to prevent a transitional high-load state on the data receiving side in a wireless transmission system employing the HSDPA method, for example. In the case where a correct data packet has been determined based on a result of error-correction decoding of a data packet received, the correct data packet is disassembled into predetermined data units and are sent to an upper layer; and when the packet sequence number of a correct data packet received is not continuous, after the received data packet having a discontinuous number is disassembled into the predetermined data units to be sent to the upper layer, the data disassembled into the data units are temporarily stored, and the temporarily stored data is sent to the upper layer without applying disassembly processing when the missing correct data packet due to the discontinuity is received.

An external control device includes a reference clock generating circuit for generating a reference clock, a CPU for generating control data, and a signal superimposing circuit for serially transmitting an external clock signal, composed of the reference clock signal and the control data superimposed thereon, to an electronic device through a signal line. The electronic device includes a PLL circuit for generating an internal clock signal synchronized with a frequency of the external clock signal serially transmitted from the external control device, and a control data extracting circuit for extracting the control data from the external clock signal based on the internal clock signal.

The invention provides a distribution network automatic system based on broadband wireless communication and a realization method thereof. The distribution network automatic system comprises a distribution transformer data collecting and monitoring device, a broadband wireless communication network and a monitoring center, wherein the distribution transformer data collecting and monitoring device is arranged in a transformer site for collecting and processing electric power parameters, transmitting data to the monitoring center by the broadband wireless communication network so as to responds to a control command sent by the monitoring center. In the realization method, the distribution transformer data collecting and monitoring device is connected with the monitoring center by the wireless communication network, a protocol in coincidence with electric power 101 protocol for the data transmission is set; and the distribution transform data collecting and monitoring device collects and processes the existing distribution transform parameters of the distribution transformer and responds to the control command from the monitoring center. The invention adopts a modular system architecture design, has upward and downward compatibility, and can realize various wireless broadband module communication services; in addition, the design of stipulations of an agreement of the monitoring center is based on the electric power 101 protocol and is compatible with protocols realizing different versions.

A first element electrode and a second element electrode connected electrically to a semiconductor element on a substrate are formed, and then an insulating film is formed on the substrate including the element electrodes. Thereafter, a first opening for exposing the first element electrode and a second opening for exposing the second element electrode are formed on the insulating film. Then, a first external electrode connected to the first element electrode via the first opening is formed immediately above the first element electrode. Furthermore, a second external electrode and a connecting wire having one end connected to the second element electrode via the second opening and the other end connected to the second external electrode are formed on the insulating film.

A portable device is equipped with a broadcasting operating mode in which the broadcasting portable device executes a verbatim memory data image copying to another device or plurality of devices equipped with receiving modes of operation. Single-threaded OS free commands may be utilized to control both the broadcasting and receiving devices during a data copy session. In another aspect, a reprogramming system includes a symbol generator and a reconfigurable device. The symbol generator processes user input data to encode a reprogramming symbol, and the reconfigurable device reads the reprogramming symbol.

A signal processor performs error correction on data which has been subjected to predetermined signal processing, for each predetermined block unit, by an error correction block, in parallel with an operation of sequentially storing the data in a cache memory. Then, error detection is performed on the data for each predetermined block unit by a descrambling / error detection block, and the data is stored in a buffer memory. Based on the results of the error detection and the error correction, when there exists some error in the data, the data with the error, which is stored in the buffer memory, is read out to be subjected to error correction again. When there is no error, the data corresponding to one block and stored in the buffer memory is transmitted to a host computer without performing error correction again.

A robot controller having a function for controlling the motion of a robot, comprising a processor for controlling the robot and for processing the environmental condition data representing the environmental conditions for the robot, a memory accessible by the processor, a writing unit for executing a function of writing the environmental condition into the memory, a first data bus connected to the memory, and a second data bus having a transfer rate lower than that of the first data bus and for transferring the control data used for controlling the robot, wherein the writing unit writes the environmental condition data into the memory through the first data bus, not through the second data bus. The writing unit can be a processor control chip which is connected to the processor through the first data bus.

A display device of high definition, multiple colors and low power consumption includes a display panel having a pixel section in which pixels are arrayed in the form of a matrix at the cross points of a plurality of data lines and a plurality of scanning lines, a scanning circuit for applying voltage sequentially to the plurality of scanning lines, and a data-line driver, which receives display data supplied by a host device, for applying signals corresponding to the display data to the plurality of data lines. Provided external to the display panel is a controller IC having a display memory for storing display data corresponding to the pixel section, an output buffer for reading data out of the display memory and outputting this data to the display panel, and a controller for controlling the display memory and output buffer and communication with the host device. The display panel is provided with a digital / analog converter, which forms part of the data-line driver, for converting display data represented by a digital signal to an analog signal. The width of a bus for data transfer between the controller IC and data-line driver of the display panel is such that data of a greater number of bits is transferred in parallel by a single transfer than is transferred by the bus between the controller and the host device. This allows the operating frequency of the data-line driver to be reduced.

A searcher detecting signal indicating conditions of propagation paths is detected from incoming waves of a pilot signal transmitted at the highest electric power. In a RAKE reception for one code channel, an interference replica signal functioning as an interference signal for an incoming wave of the code channel to be demodulated in one finger unit is produced from reference signals produced in the other finger units and the searcher detecting signal, an interference removal is performed for a receiving signal according to the interference replica signal, and the demodulation of the RAKE reception is performed. In the demodulation based on a plural code channel, a reference signal is produced in one of the finger units, an interference replica signal is produced from the reference signal and the searcher detecting signal, an interference removal is performed for the receiving signal according to the interference replica signal, and the demodulation based on the plural code channel is performed. Accordingly, a service of a high speed data transmission can be performed without increasing an occupied band as well as a service mainly performing a low speed data transmission.

As no single wireless standard can provide both broadband high-speed and seamless mobility for commercial wireless communications in terms of technology, cost, spectrum and performance, a new wireless convergence platform based on Open Wireless Architecture (OWA) has been disclosed, wherein the OWA-based TDD-OFDM is utilized as the principal air interface to provide cost-effective and spectrum-efficient broadband high-speed wireless transmissions, and converges with the second air interface, such as TDD-SCDMA or TDD-WCDMA based on OWA convergence platform to provide seamless mobile communications in order to support the future service-oriented wireless multimedia mobility infrastructure.

A robot apparatus and a motion controlling method for the robot apparatus wherein a reflex motion or the like can be performed at a high speed while decreasing the calculation amount of and the concentrated calculation load to a control apparatus. The robot has a control configuration having a hierarchical structure including a higher order central calculation section corresponding to the brain, reflex system control sections corresponding to the vertebra, and servo control systems and actuators corresponding to the muscles. From restrictions to the power consumption and so forth, there is a limitation to increase of the speed of a control cycle of the higher order central calculation section. External force acting upon the machine body is a disturbance input of a high frequency band, and a very high speed control system is required. Therefore, the reflex control systems which correspond to an intermediate hierarchy operate in a high speed cycle to respond at a high speed to the external force to absorb a deviation caused by the disturbance.

In a solid-state image pickup device which has means of adding signals from a plurality of pixels, the present invention achieves a high S / N, and achieves a solid-state image pickup device suitable for both of static image pickup and moving image pickup. The solid-state image pickup device is a solid-state image pickup device which has a pixel unit has a plurality of pixels which are arranged two-dimensionally and output pixel signals derived by a photoelectric conversion, and is provided with a first mode of reading a pixel signal every pixel, and a second mode of adding and reading a plurality of pixel signals, having a variable gain column amplifier for performing readout at different gains in the first mode and second mode. The solid-state image pickup device has a plurality of output lines where output signals from a plurality of pixels arranged in one line are outputted respectively, and at least one of the variable gain amplifier is connected to each of the plurality of output lines. A gain at the time of readout in the second mode is made to be higher than a gain at the time of readout in the first mode.

A portable device is equipped with a broadcasting operating mode in which the broadcasting portable device executes a verbatim memory data image copying to another device or plurality of devices equipped with receiving modes of operation. Single-threaded OS free commands may be utilized to control both the broadcasting and receiving devices during a data copy session. In another aspect, a reprogramming system includes a symbol generator and a reconfigurable device. The symbol generator processes user input data to encode a reprogramming symbol, and the reconfigurable device reads the reprogramming symbol.

A combination CD-ROM and MP3 recorder / player playing a CD-ROM decodes 16-bit ISO standard code words into an audio wave form converts this wave form to sound while encoding and digitizing the wave form into 24-bit MP3 format digital data. To conserve power the MP3 data is buffered in a solid state memory, preferably of the FLASH or DRAM type, before being written to a hard disk. Both reading of the CD / ROM and encoding the read contents as MP3 data, and interchange of MP3 data with other recorder / players, can be accomplished at greater than real-time play rates, permitting that, most typically, some 1200+ musical works can transferred expediently.

A system includes a plurality of storage devices and a controller. The plurality of storage devices are bus-connected to one clock signal line and one data signal line connected to the controller. Each of the plurality of storage devices stores identification information in advance to distinguish the storage devices from each other. The controller transmits data using an identification information transmission period in which one storage device is selected from the plurality of storage devices by transmitting the identification information of the one storage device to the plurality of storage devices via the data signal line and a data transmission period in which the data is transmitted to the one selected storage device. A frequency of a clock signal during the identification information transmission period is set to be lower than a frequency of the clock signal during the data transmission period.

Data pad regions are arranged in four divided regions of a semiconductor memory chip of a rectangular shape, respectively, and data pads are selectively utilized in each of the four divided regions in accordance with a word structure. Thus, it is possible to implement a semiconductor memory chip capable of being assembled in both a single chip package and a multi chip package.

A plurality of frequency-channels are provided, each composed of an OFDM multi-carrier. The OFDM sub-carrier of each channel is orthogonal to the sub-carrier of any other channel, so that two or more channels may be considered to transmit the same OFDM signal. Further, a sub-area that uses two or more channels is provided in each service area in which a base station is located at the center and assigned with a basic-frequency channel.

Radially layered nanocables are fabricated by first forming nanotubes within tubular passages of nano-sized diameter, then depositing a material dissimilar to that of the nanotubes over the surface(s) of the nanotubes by underpotential electrochemical deposition. Both hollow cables and cables with solid cores can be manufactured in this manner. The tubular passages reside in membranes or wafers that can be removed from the nanocables either before or after the second material is deposited, or in some applications, the nanocables are useful when still embedded in the membranes or wafers.

In a stacked semiconductor package, since electric power is supplied to a second semiconductor package through a first semiconductor package, a power supply path becomes complicated and fluctuation of its inductance becomes large, whereby power bounce occurs to reduce signal quality and also prevent high speed signal communication. Therefore, according to the present invention, a first solder ball group for joint to a printed wiring board is attached to a second layer of the first semiconductor package, and a second solder ball group for joint to the first semiconductor package and a solder group for power supply for direct joint to the printed wiring board are provided on the second layer of the second semiconductor package, whereby electric power can be directly supplied from the printed wiring board.

In a multi-mode interference waveguide (MMI) of a sheet shape spreading in the length direction and the width direction, the length of the multi-mode interference waveguide is set to such a length that the unique mode interferes in the length direction, thereby reducing the coupling loss when inputting / outputting the signal light. The multi-mode interference waveguide has a maximum refraction factor portion in the thickness direction and has such a refraction factor distribution that the refraction factor is reduced as departing from the maximum refraction factor portion. Thus, it is possible to suppress mode dispersion in the thickness direction of the multi-mode interference waveguide and obtain a high transmission rate in the order of 10 Gb / s.

The present specification provides a cable and a compensation method for transmitting a high speed signal and delivering power. The cable according to one embodiment disclosed in the present specification interconnects a first device and a second device, the cable comprising: a power line for transmitting power from the first device to the second device; and a voltage restorer for restoring voltage loss of the power receiving side of the second device generated based on the voltage drop relevant to the power line.

A new data transmission method and system that can enhance the speed of data transfer between base stations are provided. Unsent data stored at a base station is transmitted through a plurality of routes. The base station stores unsent packets destined for a mobile station or a gateway. The base station transmits some of the unsent packets to the mobile station or the gateway and transfers the other remaining packets to a handover-target base station. The handover-target base station transmits the received other packets to the mobile station or the gateway.