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38results about How to "Output is stopped" patented technology

Audio data transmitting device and audio data receiving device

InactiveUS20080133249A1Prevent generation of strange noiseAvoid doublySpeech analysisAudio frequencyComputer science
When an unreceivable audio sampling frequency is transmitted from an audio data transmitting device or received at an audio data receiving device, frequency changing processing is executed inside an HDMI LSI of the transmitter side or the receiver side to change the unreceivable audio sampling frequency to a frequency that can be received at the audio data receiving device based on EDID information retained in the audio data receiving device, and mute processing of the audio information is executed to prevent generation of strange sounds.
Owner:PANASONIC CORP

Power-supply control apparatus of vehicle

A power-supply control apparatus of a vehicle comprises a first electricity-storage device to supply electric power to a starter for starting engine, a generator to convert kinetic energy of the vehicle during a vehicle deceleration to electric energy for energy recovery, a second electricity-storage device coupled to the generator to store the electric power from the generator thereat, a feeder circuit coupling the second electricity-storage device to an electric load with a relatively-small electric-load capacity via a DC / DC convertor, a coupling line coupling the second electricity-storage device to the first electricity-storage device via a coupling relay, and a controller to control the electric power passing through the feeder circuit and the coupling line, wherein the controller executes a control to make the coupling relay on the coupling line in an OFF state when the starter operates.
Owner:MAZDA MOTOR CORP

Boost apparatus with over-current and over-voltage protection function

A boost apparatus includes: a boost power conversion circuit having a first diode coupled to a load, and configured to receive a DC input voltage and provide a DC output voltage to the load in response to a pulse-width-modulation (PWM) signal; a complex function detection circuit coupled to an anode of the first diode and configured to detect whether the DC output voltage is over-voltage and detect whether the first diode is open-circuit and accordingly provide a detection signal; and a control chip configured to: generate the PWM signal to control the operation of the boost power conversion circuit; and stop outputting the PWM signal and enter a shutdown status in response to the detection signal when the first diode is open-circuit or the DC output voltage is over-voltage, thereby protecting the boost apparatus and / or the load from damaging.
Owner:BEYOND INNOVATION TECH

Optical module

The present invention relates to an optical module that has a structure for protecting a pumping light source at a low cost. The optical module comprises an amplification optical fiber, an optical coupler, a pumping light source, a delay optical fiber, a seed light source, an optical fiber, a photodetector, an optical fiber, an optical isolator, an optical isolator, and a control section. Through the insertion of the delay optical fiber between the pumping light source and the optical coupler, the timing of the output control of the pumping light source which is carried out after the photodetector detects return light leads the timing with which the return light enters the pumping light source. Hence, the time with which the return light enters the pumping light source is shortened and the accumulative damage time of the pumping light source is reduced.
Owner:MEGAOPTO

Polishing apparatus

A polishing apparatus includes: a polishing table 12 for holding a polishing pad; a first electric motor 14 that rotationally drives the polishing table 12; a first rotary joint 40 that has a rotating body 41 that is rotationally driven by the first electric motor 14, a housing 42 provided around the rotating body 41, and a seal portion 44 that seals between the rotating body 41 and the housing 42; a second current sensor 31 that detects a current which is correlated with driving load of the first electric motor 14; a friction detecting unit 50 that detects sliding friction in the seal portion 44 of the first rotary joint 40; and an end point detecting apparatus 60 that detects a polishing end point of the polishing target on the basis of the current and the sliding friction.
Owner:EBARA CORP

Motor control device

It is an object of the present invention to provide a motor control device that can improve stability of sensorless control of a permanent magnetic synchronous motor. Rotor position detecting means (10) includes motor parameter correcting means (30) for correcting a parameter (winding resistance of a coil, a magnetic flux amount of a permanent magnet), which is a machine constant of a motor, in order to eliminate an induced voltage difference between a detected induced voltage peak value and a detected estimated induced voltage peak value and detects the rotor position on the basis of the corrected parameter.
Owner:SANDEN CORP

Method for controlling power transmitting device, method for detecting foreign object, and power transmitting device in wireless power transmission system

A method for controlling a power transmitting device includes (1) causing a power transmitting coil to output power before a power receiving coil and the power transmitting coil are electromagnetically coupled with each other and a mobile object including the power receiving coil overlaps the power transmitting coil in order for the power receiving coil and the power transmitting coil to be electromagnetically coupled with each other, (2) causing a thermal sensor to measure a surface temperature of the metal foreign object, and (3) causing, if the measured surface temperature of the metal foreign object is equal to or higher than a threshold, the power transmitting coil to reduce the power to be output or stop outputting the power.
Owner:PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD

Image display apparatus

A projector (image display apparatus) having enhanced visual mute or A / V mute functions includes a light modulation element for displaying an image, a lamp for illuminating the light modulation element, and a fan for cooling the lamp; the image display apparatus further includes a visual mute means for setting a visual mute mode in which no image or a predetermined image is displayed on a display screen thereof, and a lamp output luminance adjusting means for adjusting the output luminance of the lamp in response to the setting and canceling of the visual mute mode by the visual mute means.
Owner:SEIKO EPSON CORP

Broadcast receiving apparatus

If a keyword determining portion judges that the program name or program information of the selected program contains the keyword registered in a nonvolatile memory, a muting portion makes a video processing portion and an audio processing portion stop outputting a video signal and an audio signal, respectively. As a result of this muting processing, no video is displayed on the display device, and no sound is outputted from a loudspeaker. If the keyword determining portion judges that the program name or program information of the selected program does not contain the keyword registered in the nonvolatile memory, the video processing portion and the audio processing portion output the video signal and the audio signal, respectively, as usual. Consequently, video is displayed on the display device, and sound is outputted from the loudspeaker.
Owner:FUNAI ELECTRIC CO LTD

Touch pad and computer

A touch pad is configured to receive input operations using objects including a finger and a stylus. The touch pad includes a touch screen including a touch detection surface that serves as a button and as a position detection region for detecting positions of the objects. The touch pad includes an integrated circuit having an object detection function of detecting the positions of the objects on the touch detection surface and a button function of detecting a press state of the button based on a force applied to the touch detection surface. The touch pad includes a button function stop unit configured to cause, according to an operation state of the stylus or according to a setting related to an input operation of the stylus, the integrated circuit to stop outputting a button press state value indicative of the press state detected by the button function.
Owner:WACOM CO LTD

Boost apparatus with over-current and over-voltage protection functions

A boost apparatus adapted for providing a direct-current (DC) output voltage to a load is provided, and the boost apparatus includes a boost power conversion circuit and a control chip. The boost power conversion circuit has a diode coupled to the load. Besides, the boost power conversion circuit is configured to receive a DC input voltage and provide the DC output voltage to the load in response to a pulse-width-modulation (PWM) signal. The control chip is coupled to the boost power conversion circuit and configured to generate the PWM signal to control the operation of the boost power conversion circuit. The control chip is also configured to stop outputting the PWM signal and enter into a shutdown state when the diode is an open circuit or a short circuit, so as to protect the boost apparatus and / or the load from being damaged.
Owner:BEYOND INNOVATION TECH

Capsule medical apparatus

The capsule medical apparatus of the present invention including an information acquisition section that acquires information on the inside of a test subject comprises a plurality of communication electrodes that are disposed on the surface of the capsule medical apparatus and capable of communication for outputting the information acquired by the information acquisition section to the outside of the test subject, a signal conversion section that converts an electric signal outputted according to the information acquired by the information acquisition section into electrode drive signals for driving the communication electrodes by inducing a potential difference therebetween, a signal output switching section that switches between output states of the electrode drive signals, and a signal switching control section that controls the signal output switching section based on the output state of the electric signal to stop outputting the electrode drive signals during the period in which the electric signal is not outputted.
Owner:OLYMPUS CORP

Digital amplifier apparatus and method of resetting a digital amplifier apparatus

A digital amplifier apparatus includes a gain-adjusting section operable to adjust a gain of a digital audio signal; a dither-superposing section operable to superpose a predetermined dither on the digital audio signal; a pulse-width-modulated signal generating section operable to generate a pulse-width-modulated signal corresponding to the digital audio signal; an amplifying section operable to cause a switching element to perform a switching operation in accordance with the pulse-width-modulated signal; a pulse-width changing section operable to change a ratio between a “high” state and a “low” state of the pulse-width modulated signal; a synchronizing section operable to synchronize the pulse-width modulated signal with a reset signal that resets the digital audio signal; and a control section operable to perform a resetting operation by setting the gain of the digital audio signal to a zero level upon receiving the reset signal, stopping the superposing of the dither to thereby generate the pulse-width modulated signal, and setting the pulse-width modulated signal to the “low” state by using the pulse-width modulated signal synchronized with the reset signal, thereby causing the switching element to stop performing the switching operation.
Owner:SONY CORP

Power conversion device

InactiveUS20220109383A1Reducing and preventing increaseReduce and prevent increaseAc-dc conversionShort-circuit testingControl powerComputational physics
A power conversion device includes an electric leakage detector, a failure determiner to output a pulse current to reproduce, in a simulated manner, electric leakage, and a power conversion controller configured to control power conversion. The power conversion controller is configured to determine a failure of the electric leakage detector depending on whether or not a pulse width of a pulse current as an electric leakage detection signal acquired by the electric leakage detector is within a predetermined range.
Owner:FUJI ELECTRIC CO LTD

Short-circuit protective circuit

It is an object of the invention to provide a short-circuit protective circuit of a constant-voltage power-supply circuit capable of realizing a short-circuit protection with a simple circuit configuration in a power-supply circuit provided with a plurality of power-supply lines. A regulator is connected to one of a plurality of power-supply lines, and a constant voltage is outputted from an output terminal of the regulator to one output line. An output voltage from the regulator is inputted to constant-voltage circuits as a reference voltage and other output constant voltages are supplied to other output lines. A voltage detection circuit is connected to the other output lines, wherein if there occurs a voltage drop in either output line, a detection signal is outputted to an operation circuit, thereby turning off an output control terminal of the regulator. Accordingly, an output of the regulator is stopped so that the output lines are stopped all at once.
Owner:ORION ELECTRIC CO LTD

Driving circuit, driving method, and display device

A driving circuit, a driving method, and a display device are provided. The driving circuit is applied to a display panel. The driving circuit sets a control module, so that when a current value of the control module on a common voltage driving module is greater than a preset value, a power management chip is controlled to stop outputting a common voltage, so that when a current on a common voltage line is large, an output voltage to the common voltage driving module is stopped, thereby avoiding a phenomenon that a melting screen damages a display screen due to large current.
Owner:TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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