Sharp Kabushiki Kaisha Corporation

Junki Asai

Kenji Maeda

Hidenori Kuwajima

Takuya Okamoto

Tatsuo Watanabe

Fumitaka Seki

Hidenori Fujisawa

Shigefumi Urata

Tetsuji Togoh

Kohji Mitsuda

A microphone system includes: a microphone including a microphone output terminal and a microphone GND terminal, the microphone being configured to output, as an input sound signal, a voltage signal exhibiting a change in voltage between the microphone output terminal and the microphone GND terminal depending on an input sound; an A/D converting unit mounted on a first circuit board and configured to perform digital conversion on the input sound signal that is input; and a power supply circuit mounted on a second circuit board connected to the first circuit board via a pair of power supply lines, and configured to feed DC power to the A/D converting unit via the pair of power supply lines. The microphone outputs the input sound signal to the A/D converting unit via a pair of first signal lines different from the pair of power supply lines.

Microphone system

The present invention has an object to enable an improvement in accuracy of face detection and obtain an optimum image in which focus and exposure are adjusted in conformity with a detected face. An image capture processing device () of one mode of the present invention includes: a face detection section () configured to perform face detection so as to detect a face from an image of a subject, the image being captured by an auxiliary image capture sectionwhich captures the image of the subject; and a control section () configured to control, on the basis of a result of the face detection, a main image capture section () to capture an image of the subject.

Image capturing and processing device, electronic instrument, image capturing and processing method, and recording medium

The present invention provides a transfer control device capable of reducing an electric power consumption and suppressing a decrease in display quality. A host processor () of the present invention includes a display data transmitting circuit () which transmits display data to a driver () by an interlace method or a non-interlace method, depending on a transmission amount of the display data, which transmission amount is identified by a transmission amount identifying circuit ().

Transfer control device, terminal device, and transfer control method

The present invention provides a display control device and a display device each of which can reduce electric power consumption by switching a resolution of image data to be displayed. In a case of transferring image data having a 4k resolution, an image transferring section () transfers the image data to a display driver () via a first lane and a second lane. In a case of transferring image data having an FHD resolution, the image transferring section () stops operation of the first lane and transfers the image data to the display driver () via the second lane.

Display control device, display device, method for controlling display control device, and storage medium

A host control section () is a control device for a display device (). The host control section () includes an image determining section () for calculating a density of pixels, which have intermediate grayscale levels (i.e., grayscale levels of a first range), among a plurality of pixels in an image; and a driving changing section () for changing a refresh rate of the display device () in accordance with the density which has been calculated.

Control device, display device, and control method for display device

The display controller () includes: a DRAM (); a SRAM () which consumes electric power less than the DRAM (); an update judging section (); a secondary compression section (); and a decompression section (). In a case where the update judging section () has judged that image data is not updated, (i) the secondary compression section () compresses image data and then stores compressed image data in the SRAM (), (ii) the DRAM () stops a memory retaining operation, and (iii) the decompression section () decompresses the compressed image data and then supplies decompressed data to an LCD ().

Display control device

An object of the present invention is to provide a display device which suppresses power consumption as well as displaying an image with excellent quality. A display device () in accordance with one aspect of the present invention includes a polarity determining section () for determining whether or not a first polarity in a drive vertical period immediately preceding a first term in which an image is not rewritten is the same as a second polarity in a pause vertical period which is a last pause vertical period before the second vertical period, and a refresh control section () for providing an additional vertical period in the first term in a case where the first polarity is the same as the second polarity.

Display device, electronic apparatus, and control method for display device

A memory control device of the present invention comprises a reset control section () for (i) suspending, at a time point where rp overtakes wp or wp overtakes rp or a time point immediately before that time point, a reading operation of data, and (ii) conducting again, at a predetermined time point where reading is to be resumed, the reading operation of the data from a position at which the reading operation has been started in a frame memory ().

Memory control device, mobile terminal, and computer-readable recording medium for controlling writing and reading of data to frame memory

A memory control device of the present invention comprises a determination section () for determining whether a time point of start of a writing operation falls within a risky period; and a delay control section () for delaying, in a case where the determination section () determines that the time point of the start of the writing operation falls within the risky period, a time point of the start of one of the writing operation and the reading operation which one is higher in operation rate, said one of the writing operation and the reading operation being delayed by a predetermined delay period.

Memory control device, mobile terminal, and computer-readable recording medium

In a case where next image data, corresponding to a next screen, is not supplied from a host even when first predetermined time has elapsed since the first supply of image data was completed, the period control section () starts the second supply of the image data, of which the first supply has been carried out, to a liquid crystal display device. In a case where next image data, corresponding to a next frame, is not supplied from the host even when second predetermined time has elapsed since the second supply of the image data was completed, the period control section () starts the third supply of the image data to the liquid crystal display device, and sets the first predetermined time to be longer than the second predetermined time. This makes it possible to appropriately update a displayed image.

Image data output control device, display device, and recording medium

In a case where a determination section () determines that a distance between rp and wp is less than RDIST, a period control section () carries out a suspending control of a reading operation of a next line, until the distance between rp and wp is not less than RDIST.

The present invention includes a write-in start position control section () that performs a process of shifting, by a given shifting amount, a start position of a write-in operation to the frame memory (), when the write-in operation is started, the given shifting amount being predetermined so as not to exceed a capacity reserved in advance in the frame memory.

To prevent tearing in a case where image data is compressed to be written into a frame memory, the present invention includes (i) a compression section () for compressing image data for a single frame, the image data being transferred from a host processor (), and writing the image data into a frame memory (), (ii) an expansion section for reading image data, expanding the image data, and transferring the image data to an LCD (), and (iii) a delay control section () for, until an inhibit time period Ts passes after the start of reading image data for a first frame, inhibiting the start of writing image data.

Memory control device and mobile terminal

In a conventional gated clock generating circuit, different signal delay times are produced depending on the arrangement of interconnection of circuit elements, often causing glitches. To avoid this, a gated clock generating circuit of the invention has a circuit that generates a first gate signal having inversion points synchronous with edges of a continuously pulsating clock signal, a circuit that generates a second gate signal deviated by half the period of the clock signal relative to the first gate signal, and a circuit that turns on and off the output of the clock signal in accordance with the first and second gate signals. Even when inversion points of the first or second gate signal deviate from edges of the clock signal, no glitches result.

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Osaka, Japan

Junki Asai