Patent application number | Description | Published |
20090252025 | METHOD AND APPARATUS OF OBTAINING DIRECTIVITY - A method of obtaining directivity in an optical waveguide includes the steps of falling incident light on surface of diffuse reflection members arranged at a center portion of the optical waveguide, generating a first table relative to an amount of emitted light that is acquired at a circumference of the optical waveguide by controlling at least one of an image control factor for changing an image of the incident light and a coordinate control factor for changing coordinates of the incident light with them being changed, and generating a second table relative to a pattern of the light which is incident to the diffuse reflection member by seeking for a combination of the image and the coordinates of the light based on the generated first table. | 10-08-2009 |
20090252453 | OPTICAL SELECTOR SWITCH AND SIGNAL-PROCESSING APPARATUS - An optical selector switch contains an optical waveguide that includes a first optical waveguide portion having a first light-transmissivity, a second optical waveguide portion having a second light-transmissivity, reflecting members that reflect light, and a light-dividing device that reflects and transmits light; at least one light-emitting unit that emits the light toward the first optical waveguide portion of the optical waveguide; and at least one light-receiving unit that receives the light which is incident to the first optical waveguide portion of the optical waveguide from the light-emitting unit, based on a directivity due to an angle of the incident light to the first optical waveguide portion of the optical waveguide, wherein the incident light to the first optical waveguide portion is emitted radially toward the circumference of the second optical waveguide portion of the optical waveguide. | 10-08-2009 |
20100091128 | SOLID-STATE IMAGER AND SIGNAL PROCESSING SYSTEM - A solid-state imager includes a pixel unit for converting incident light into an electrical signal, a substrate bearing the pixel unit formed thereon, an analog-to-digital converter, formed on the substrate, for converting a signal read from the pixel unit into a digital signal, an optical communication unit, arranged on the bottom surface of the substrate opposite the surface of the substrate bearing opposite the top surface of the substrate bearing the pixel unit receiving the incident light, for converting the digital signal converted by the analog-to-digital converter into a light signal and outputting the light signal, and a signal line for transferring the digital signal, converted by the analog-to-digital converter, to the optical communication unit arranged on the bottom surface of the substrate. | 04-15-2010 |
20100091144 | SOLID-STATE IMAGING DEVICE AND SIGNAL PROCESSING SYSTEM - A solid-state imaging device includes: a pixel section formed on a substrate and having an effective pixel area that converts incident light into an electric signal, and an optical black area placed around the effective pixel area; an optical communication section placed near a predetermined optical black area of the optical black area, and converts a signal read from the pixel section into an optical signal for output; a dark current level supplying section that generates an estimated dark current level varying with a pixel position from which a signal is read, on the basis of a dark current level acquired from the predetermined optical black area, and outputs the estimated dark current level in synchronization with a signal read timing from the effective pixel area; and a noise compensation section that subtracts the estimated dark current level from a signal read from the effective pixel area. | 04-15-2010 |
20100091150 | SOLID-STATE IMAGING DEVICE AND SIGNAL PROCESSING SYSTEM - A solid-state imaging device includes: a pixel portion configured to convert light into an electric signal; a substrate where the pixel portion is formed; an A/D conversion unit configured to convert a signal read out from the pixel portion into a digital signal; and an optical communication unit configured to convert a signal digitized by the A/D conversion unit into an optical signal, and output the optical signal, with the single optical communication unit or a plurality of the optical communication units being disposed grouped in the vicinity portion of the substrate around the pixel portion. | 04-15-2010 |
20100091151 | SOLID-STATE IMAGE PICKUP DEVICE AND SIGNAL PROCESSING SYSTEM - A solid-state image pickup device includes a pixel unit configured to convert light into an electrical signal; a substrate having a first side on which the pixel unit is formed and a second side opposite the first side; an optical communication unit disposed on the first side of the substrate, and configured to convert a signal read out from the pixel unit into an optical signal and output the optical signal; and a cooling unit disposed on the second side of the substrate and below at least a forming area of the optical communication unit, the forming area being an area where the optical communication unit is formed, and configured to cool or dissipate heat generated in the optical communication unit and transferred through the substrate. | 04-15-2010 |
20100091152 | SOLID-STATE IMAGING DEVICE AND SIGNAL PROCESSING SYSTEM - A solid-state imaging device includes: a pixel portion configured to convert light into an electric signal; a substrate where the pixel portion is formed; an optical communication unit configured to convert a signal read out from the pixel portion into an optical signal, and outputs the optical signal, which is disposed in one surface where the pixel portion is formed of the substrate; and a light shielding portion configured to shield, of signal light to be output from the optical communication unit, light that directs to the pixel portion, and light to be leaked from the optical communication unit, which is disposed around the optical communication unit. | 04-15-2010 |
20100091153 | SOLID-STATE IMAGE PICKUP DEVICE, OPTICAL APPARATUS, SIGNAL PROCESSING APPARATUS, AND SIGNAL PROCESSING SYSTEM - A solid-state image pickup device includes a pixel unit configured to convert light into an electrical signal, an A/D converter configured to convert a signal read from the pixel unit into a digital signal, a light modulation unit configured to modulate an externally input light beam using the signal digitized by the A/D converter and output a signal light beam based on the signal read from the pixel unit, a timing generation unit configured to generate a synchronization signal used for synchronizing input and output of signals of the pixel unit, the A/D converter, and the light modulation unit, and a controller configured to control readout of the signal. | 04-15-2010 |
20100172613 | OPTICAL SELECTOR SWITCH AND SIGNAL-PROCESSING APPARATUS - An optical selector is provided which enables reliable transmission of a signal from a single or plurality of light output sections to a single or plurality of light input sections. | 07-08-2010 |
20100220954 | SIGNAL PROCESSING APPARATUS - In the sending and receiving of a signal through an optical waveguide, an unknown substrate connected to the optical waveguide can be recognized. A signal processing apparatus | 09-02-2010 |
20100265350 | SOLID-STATE IMAGE PICKUP ELEMENT, OPTICAL APPARATUS, SIGNAL PROCESSING APPARATUS, AND SIGNAL PROCESSING SYSTEM - The present invention relates to a solid-state image pickup element capable of transmitting pixel signals read from a pixel unit as optical signals at high speed, an optical apparatus, a signal processing apparatus, and a signal processing system. | 10-21-2010 |
20110022361 | SOUND PROCESSING DEVICE, SOUND PROCESSING METHOD, AND PROGRAM - A sound processing device includes: a nonlinear processing unit that outputs a plurality of sound signals including sound sources existing in predetermined areas by performing a nonlinear process for a plurality of observed signals that are generated by a plurality of sound sources and are observed by a plurality of sensors; a signal selecting unit that selects a sound signal including a specific sound source from among the plurality of sound signals output by the nonlinear processing unit and the observed signal including the plurality of sound sources; and a sound separating unit that separates a sound signal including the specific sound source that is selected by the signal selecting unit from the observed signal selected by the signal selecting unit. | 01-27-2011 |
20110228951 | SOUND PROCESSING APPARATUS, SOUND PROCESSING METHOD, AND PROGRAM - A sound processing apparatus includes a target sound emphasizing unit configured to acquire a sound frequency component by emphasizing target sound in input sound in which the target sound and noise are included, a target sound suppressing unit configured to acquire a noise frequency component by suppressing the target sound in the input sound, a gain computing unit configured to compute a gain value to be multiplied by the sound frequency component using a gain function that provides a gain value and has a slope that are less than predetermined values when an energy ratio of the sound frequency component to the noise frequency component is less than or equal to a predetermined value, and a gain multiplier unit configured to multiply the sound frequency component by the gain value computed by the gain computing unit. | 09-22-2011 |
20110231187 | VOICE PROCESSING DEVICE, VOICE PROCESSING METHOD AND PROGRAM - A voice processing device includes a zone detection unit which detects a voice zone including a voice signal or a non-steady sound zone including a non-steady signal other than the voice signal from an input signal and a filter calculation unit that calculates a filter coefficient for holding the voice signal in the voice zone and for suppressing the non-steady signal in the non-steady sound zone according to the detection result by the zone detection unit, in which the filter calculation unit calculates the filter coefficient by using a filter coefficient calculated in the non-steady sound zone for the voice zone and using a filter coefficient calculated in the voice zone for the non-steady sound zone. | 09-22-2011 |
20120238908 | MASTICATION DETECTION DEVICE AND MASTICATION DETECTION METHOD - An information processing apparatus and method provide logic for processing information. In one implementation, an information processing apparatus may include a receiving unit configured to receive an audio signal associated with a motion of a human mandible over a time period. The information processing apparatus may also include a determination unit configured to determine whether the motion of the human mandible corresponds to mastication, based on at least a power of the received audio signal during the time period. | 09-20-2012 |