Patent application number | Description | Published |
20100283648 | DeltaSigma Modulator - Disclosed herein is a ΔΣ modulator including: at least one integrator; a quantizer for quantizing a signal output by the integrator and outputting the quantized signal as a digital signal; and a compensation section configured to compensate the ΔΣ modulator for a non-ideal characteristic caused by an internal loop delay, wherein the compensation section is a feedback path formed to start at the output node of the quantizer and end at the input node of the integrator immediately preceding the quantizer, and the feedback path formed to start at the output node of the quantizer and end at the input node of the integrator realizes a frequency-independent part in combination with the integrator and an internal DA converter which adopts the NRZ technique to suppress the signal amplitude at the quantizer input. | 11-11-2010 |
20120194365 | DELTA-SIGMA MODULATOR AND SIGNAL PROCESSING SYSTEM - A ΔΣ0 modulator includes: a plurality of integrators cascaded to an input of an analog signal; a quantizer for quantizing an output signal of the integrator at a last stage and outputting a resultant digital signal; a DA converter for feedback for converting the digital signal obtained by the quantizer into an analog signal and supplying the analog signal to an input side of at least the integrator at a first stage; and an adder, arranged at an input stage side of the integrator at the last stage, for adding an output of the integrator at a preceding stage of the integrator at the last stage to at least one path signal supplied from at least another path via a first resistor having at least a first coefficient. The integrator at the last stage includes an operational amplifier, an integration capacitor, and a second resistor having a second coefficient. | 08-02-2012 |
20120194371 | ANALOG-TO-DIGITAL CONVERSION APPARATUS AND SIGNAL PROCESSING SYSTEM - An AD conversion apparatus includes: a first AD converter for converting an input analog signal into a first digital signal; a second AD converter for converting an analog signal obtained as a result of multiplying the input analog signal by a coefficient α into a second digital signal; a first computing unit for multiplying the first digital signal output by the first AD converter by α | 08-02-2012 |
20140253359 | BALANCED SIGNAL PROCESSING CIRCUIT AND ANALOG-DIGITAL CONVERSION CIRCUIT - A balanced signal processing circuit includes: a comparator; a first capacitor having a first end connected to a non-inverting input terminal of the comparator; a second capacitor having a first end connected to an inverting input terminal of the comparator; a first switch configured to apply a voltage signal to the first end of the first capacitor; a second switch configured to apply a voltage signal to the first end of the second capacitor; an operation state detection section configured to detect an operation state of the comparator; and an offset voltage correction section configured to apply a predetermined offset voltage to a second end of the first capacitor and a second end of the second capacitor when the operation state detection section detects an abnormal operation state of the comparator. | 09-11-2014 |
20150214932 | DUTY RATIO CORRECTION CIRCUIT AND PHASE SYNCHRONIZATION CIRCUIT - A duty ratio correction circuit includes: a buffer circuit configured to generate a second signal based on a first signal, the second signal having a DC component corresponding to a first control signal; a waveform shaping section configured to shape a waveform of the second signal to generate a third signal that is a target of duty ratio correction; a first capacitor; and a first charge-discharge control circuit configured to selectively charge or discharge the first capacitor based on the third signal, to generate the first control signal. | 07-30-2015 |
Patent application number | Description | Published |
20100231683 | Light stabilizer, light stabilization method, and printer - A light stabilizer used for an electronic device including a plurality of electronic parts including a light source, a main power source for supplying a drive current to the electronic parts, and a start button for the light source, wherein the light stabilizer comprises, a heating power source that supplies a heating current to the light source to make the light source self-heat in a non-light emitting state, and a control section that executes control so that after the main power source is turned on, the heating current is supplied to the light source firstly out of the plurality of electronic parts to increase temperature of the light source to the degree higher than dew point temperature, and when the start button is pressed down, the drive current is supplied to make the light source emit light. | 09-16-2010 |
20120008655 | HEAT SINK, METHOD OF PRODUCING SAME, AND SEMICONDUCTOR LASER DEVICE - A heat sink enabled to prevent structural deterioration of an inner wall of a flow channel caused by corrosion a semiconductor laser device are provided. The heat sink includes a main body, a flow channel which is provided in the main body, and inside which a cooling medium passes through, and a passivation film covering an inner-wall surface of the flow channel. | 01-12-2012 |
Patent application number | Description | Published |
20090043908 | CONTENT PLAYBACK DEVICE, CONTENT PLAYBACK METHOD, COMPUTER-READABLE STORAGE MEDIUM, AND CONTENT PLAYBACK SYSTEM - A content playback device has a processor, a memory, a data acquisition portion that acquires streaming data for content from a data transmission device, and a storage portion that stores the acquired streaming data in a storage medium. The content playback device also has a playback portion that plays back the content based on the stored streaming data, a playback control portion that causes the playback portion to halt playback of the content in response to a halt playback request, and an acquisition control portion. The acquisition control portion causes the data acquisition portion to stop acquisition of the streaming data in response to the halt playback request, and causes the data acquisition portion to restart acquisition of the streaming data in response to a resume playback request. The storage portion stores, in the storage medium, the streaming data acquired in response to the resume playback request, starting from a position at which acquisition of the streaming data was stopped. | 02-12-2009 |
20090055549 | Content Reproduction Apparatus, Content Reproduction Method, and Program - A content reproduction apparatus is provided for reproducing variable-speed content. The content reproduction apparatus includes a data acquisition section for obtaining first streaming data and second streaming data, wherein the first streaming data includes first reproduction time data indicating a time to reproduce the first streaming data at a first streaming speed, and wherein the second streaming data includes second reproduction time data indicating a time to reproduce the second streaming data at a second streaming speed. The content reproduction apparatus also includes a reproduction time acquisition section for calculating a third reproduction time according to the first reproduction time data, the second reproduction time data, and a relationship between the first streaming speed and the second streaming speed, the third reproduction time being a time to reproduce the first streaming data at the first streaming speed followed by the second streaming data at the first streaming speed. | 02-26-2009 |
20090070499 | CONTENT REPRODUCTION APPRATUS, CONTENT REPRODUCTION METHOD, AND CONTENT REPRODUCTION SYSTEM - A content reproduction method is provided, which acquires, from a data transmission apparatus, first streaming data that is used to play a content at a first speed, and records the first streaming data on a storage medium. The content reproduction method plays the content at the first speed, based on the stored first streaming data. The content reproduction method also starts acquisition of second streaming data in response to a varied-speed reproduction request for the content, wherein the second streaming data is used to play the content at a second speed, and plays the content at a transition speed based on the stored first streaming data, in response to the varied-speed reproduction request. The content reproduction method plays the content at the second speed based on the second streaming data, after the acquisition of the second streaming data progresses to a reproduction preparation complete state. | 03-12-2009 |
20090245124 | Receiving device, clock synchronizing method, and computer program - There is provided a receiving device including: a receiving unit that receives a packet stream; an oscillator; a measuring unit that performs a measuring operation; an acquiring unit that reads the newest time stamp read from the packet stream received by the receiving unit and the newest measurement value measured by the measuring unit with a predetermined period, from a point of time when the packet stream starts to be received; a calculating unit that calculates an accumulation value of the time stamps and the measurement values acquired by the acquiring unit; a comparing unit that compares a difference between the accumulation value of the time stamps and the accumulation value of the measurement values calculated by the calculating unit, and a value corresponding to a network jitter; and a frequency control unit that controls the oscillation frequency of the oscillator based on the comparison result by the comparing unit. | 10-01-2009 |
20100088426 | RECEPTION APPARATUS RECEPTION METHOD, AND COMPUTER PROGRAM - A reception apparatus receiving a stream delivered by multicast through a network includes: a stream reception section receiving a stream of a first channel as a viewing stream and one or more streams of second channels as viewing candidate streams; a buffer section storing the streams of the channels received by the stream reception section; a reproduction processing section performing processing for viewing the stream stored as the viewing stream in the buffer section; and a channel processing section causing, when an instruction to switch over, as a viewing target, from the first channel to any one of the second channels of the streams being received as the viewing candidate streams is input, the reproduction processing section to process as the viewing stream the stream corresponding to the second channel and stored in the buffer section, and the stream reception section to receive the stream as the viewing stream. | 04-08-2010 |
20100100635 | Reception Apparatus, Content Reception Method, and Program - A reception apparatus includes a download section, a storage section, a judgment section, and a presentation section. The download section downloads a content via a network. The storage section stores the content being downloaded. The judgment section judges, based on a transmission rate of the content being downloaded and a standard reproduction rate of the content, whether the content can be reproduced continuously. The presentation section presents a result of the judgment to a user. | 04-22-2010 |
Patent application number | Description | Published |
20080205908 | TERMINAL APPARATUS, A CONSUMABLES RESIDUAL QUANTITY DISPLAY PROGRAM, AND A RECORDING MEDIUM - A terminal apparatus, a consumables residual quantity display program, and a recording medium are disclosed. The terminal apparatus, which is connected to a printing apparatus through a network, includes an acquisition unit for acquiring information about consumables of the printing apparatus from the printing apparatus; and a display controller for displaying the information about the consumables, which information is acquired by the acquisition unit, if the information of at least one item of the consumables fulfills a predetermined condition. The display controller may display a no-display specifying screen that prompts a user to specify whether a “no-display” mode should be activated, in which “no-display” mode, displaying the information about the consumables is stopped even if the predetermined condition is fulfilled when the information is to be acquired by the acquisition unit at a next time. | 08-28-2008 |
20080225330 | PRINTING APPARATUS AND PRINTING METHOD - A printer includes a data obtaining unit, a storage unit, an engine, and a printing unit. The data obtaining unit obtains, from print data stored in the storage unit, print data for sheets less than the maximum number of sheets dischargeable to a discharge tray as target print data and sends the target print data to the engine via the printing unit. The target print data includes first print data of odd pages and second print data of even pages. After printing the first print data on one side of sheets fed from a feed tray and discharges the sheets onto the discharge tray, the engine prints the second print data on the other side of the sheets manually returned from the discharge tray to the feed tray. | 09-18-2008 |