Patent application number | Description | Published |
20090167452 | TRANSMISSION CHARACTERISTIC ADJUSTMENT DEVICE, CIRCUIT SUBSTRATE, AND TRANSMISSION CHARACTERISTIC ADJUSTMENT METHOD - A transmission characteristic adjustment device and the like that can carry out circuit adjustment before an error occurs, and has a transmission characteristic with high reliability without generating an error are provided. | 07-02-2009 |
20090168859 | TRANSMISSION CHARACTERISTIC ADJUSTMENT DEVICE, CIRCUIT BOARD, AND TRANSMISSION CHARACTERISTIC ADJUSTMENT METHOD - A transmission characteristic adjustment device with high reliability in a transmission characteristic that can adjust a circuit before an error occurs and does not generate an error is provided. A transmission characteristic adjustment device that adjusts a transmission characteristic between a transmission element and a receiving element interposing a transmission path, includes: a sight test circuit that is provided on the receiving element side and detects an eye pattern aperture; a margin calculation circuit that calculates a margin with respect to a mask included in the detected eye pattern aperture; a circuit element adjustment circuit that evaluates a setting value of a circuit element of the transmission element or the receiving element having influence on a receiving waveform based on fluctuation of the calculated margin, and changes the setting value of the circuit element of the transmission element or the receiving element based on a result of the evaluation. | 07-02-2009 |
20100020858 | SIGNAL TRANSMISSION APPARATUS AND METHOD OF CONTROLLING THE APPARATUS - According to an aspect of the embodiment, According to an aspect of the invention, a signal transmission apparatus transmits a first signal to a transmission line. The apparatus measures a reflection characteristic of the transmission line based on a signal resulting from reflection of the first signal, and measures a transmission characteristic of the transmission line based on a signal resulting from transmission of the first signal through the transmission line. The apparatus determines a transmission clock frequency and a multi-value number based on the reflection characteristic and the transmission characteristic, and modulates information using the transmission clock frequency and the multi-value number to transmit a second signal resulting from the modulation to the transmission line. The apparatus receives the second signal through the transmission line and demodulates the received second signal. | 01-28-2010 |
20100020859 | SIGNAL TRANSMISSION APPARATUS AND SIGNAL TRANSMISSION CONTROL METHOD - A signal transmission apparatus comprises a first signal transmission section configured to transmit a first signal for performing measurement of characteristics of a transmission line to the transmission line. A reflection characteristic measurement section is configured to measure a reflection characteristic of the transmission line. A pass characteristic measurement section is configured to measure a pass characteristic of the transmission line. A determination section is configured to determine a transmission clock frequency based upon the reflection characteristic. A second signal transmission section is configured to modulate information and to transmit a second signal obtained by the modulation to the transmission line. A second signal receiving section is configured to receive and to demodulate the second signal which has been transmitted by the second signal transmission section and has passed the transmission line. | 01-28-2010 |
20100118930 | SIGNAL TRANSMISSION APPARATUS AND METHOD - According to an aspect of the embodiment, a signal transmission apparatus includes a sine wave output unit that outputs a sine wave to a transmission path, network analyzers and that analyze signals on the transmission path, an S parameter measurement unit that measures S parameters based on the analysis, a selection unit that selects a plurality of combinations of an amplitude, an emphasis characteristic, and an equalization characteristic based on the S parameters, measurement units that measure a BER or an eye opening of the transmission path for the plurality of combinations, and a setting unit that extracts single combination based on the measurement and that sets the amplitude, the emphasis characteristic, and the equalization characteristic to a transmission unit and a reception unit. | 05-13-2010 |
20110078895 | MANUFACTURING METHOD OF WIRING SUBSTRATE AND DESIGN METHOD OF WIRING SUBSTRATE - A method of manufacturing a wiring substrate includes forming a conducting layer on a first insulating layer including a first glass cloth; forming a photosensitive resist layer on the conducting layer; recognizing a first origin position on the first insulating layer; forming a mask on the resist layer by positioning the mask with respect to the first origin position, the mask being formed so as to position wiring patterns only on positions overlapping the first glass cloth in a planar view; and exposing the resist layer via the mask and forming the wiring patterns only on the positions overlapping the first glass cloth in the planar view. | 04-07-2011 |
20130254733 | COMPUTER PRODUCT, DESIGN SUPPORT METHOD, DESIGN SUPPORT APPARATUS, AND MANUFACTURE METHOD - A design support apparatus acquires position information for a signal wire that is to be disposed in wiring layer stacked on an insulation layer. Subsequently, the design support apparatus acquires position information for an area obtained by projecting, in a direction for glass fiber bundles to be stacked on one another, the glass fiber bundles in an insulation layer actually used. The design support apparatus converts the position information for the signal wire that is to be disposed into position information for a position in the area of the glass fiber bundles such that the signal wire is included in the area of the glass fiber bundles in the insulation layer actually used. The design support apparatus outputs the converted position information. | 09-26-2013 |
20140376187 | PACKAGE MOUNTING STRUCTURE - A package mounting structure includes: a first substrate having wiring; a second substrate having wiring; at least one cooling unit having a first face and a second face different from the first face; at least one power supply unit that is mounted on the first substrate and is joined to the first face of the cooling unit; and at least one electronic component that is mounted on the second substrate and is joined to the second face of the cooling unit, wherein the power supply unit supplies power to the electronic component through the wiring of the first substrate, the cooling unit, and the wiring of the second substrate. | 12-25-2014 |
20150087229 | MEMORY INCLUDING WIRELESS COMMUNICATION CAPABILITY - A memory includes a control layer that includes a first radio communication unit that performs radio communication and a control unit that controls the radio communication; and a memory layer that includes a second radio communication unit that performs the radio communication with the first radio communication unit and a first storage unit that stores information, the memory layer being provided on the control layer. | 03-26-2015 |