Panasonic Corporation

Matsushita Electric Industrial Co., Ltd.

Keiichi Tsumura

Takahiro Iwasawa

Hiroki Hachiyama

Kenji Takahashi

Toshiya Fujii

Toshinobu Hatano

Makoto Kawakami

Kazuyuki Inokuma

Toshiyuki Nakashima

Taichi Nagata

Katsumi Tokuyama

Yoshihisa Shimazu

Nobuyuki Minakata

Takeshi Hirayama

Masakatsu Furuichi

A semiconductor integrated circuit provided with an (m&#xd7;n)-bit output mode and an n-bit output mode and including a set of (m&#xd7;n) I/O portionsfor outputting signals to the outside, wherein data with a bus width of (m&#xd7;n) bits are selected by a set of selectorsin the (m&#xd7;n)-bit output mode so that the data with the bus width of (m&#xd7;n) bits are outputted from the set of (m&#xd7;n) I/O portionswhereas data with a bus width of n bits are multiply selected by the set of selectorsin the n-bit output mode so that the data with the bus width of n bits are outputted from the set of (m&#xd7;n) I/O portionswhile multiplexed in at least two I/O portions per bit. Every I/O portions which output one and the same bit are short-circuited externally to improve current drive capacity.

Semiconductor integrated circuit

A pixel signal output from a solid-state imaging device is converted into image data and recorded in a memory by a writing controller. A reading controller reads the image data from the memory by blocks and performs Y/C processing on the image data that has been read out by blocks. A JPEG processing section performs compression coding. The coded data is not recorded in the memory but is written on a recording medium by a DMA processing section.

Image processor including memory controller which starts reading image data before writing screenful of image data is completed

A preprocessor converts an analog image signal, which is outputted from a solid-state image pickup sensor that photoelectric-converts an optical image of a subject, into digital image data. A timing generator periodically generates a drive pulse for driving the solid-state image pickup sensor continuously/discontinuously, and generates an output stop position signal that indicates an output stop position of the solid-state image pickup sensor when the solid-state image pickup sensor is driven discontinuously in sync with the drive pulse. A continuous data generator lets through the image data when the output stop position signal is invalid, and converts the image data inputted in a discontinuous state into continuous image data when the output stop position signal is valid.

Analog front-end device and image pickup device

An image processing device for performing image processing for an image signal output from an image sensor and outputting the results, including: an internal memory having line memories for storing an image by row or column; an image processing section for performing the image processing using the internal memory; and a CPU for controlling the image processing section. The image processing section includes a plurality of processing circuits each performing predetermined processing as the image processing. At least one of the plurality of processing circuits is configured to allow use of an external memory provided outside the image processing device as required.

Image processing device and camera including CPU which determines whether processing performed using external memory

From horizontal and vertical coordinate values HC and VC of a pixel, a distance operation unit calculates a distance value RV indicating the distance from an optical-axis position to the pixel. A correction-data operation unit receives the distance value RV, and calculates correction data CD for the pixel by referring to an approximation function indicating relation between distance values and correction data. The approximation function is divided into a plurality of segments, and in each segment represented by a quadratic function defined by a predetermined number of sample points.

Shading correction method and system and digital camera

A header information analysis section analyzes header information of a compressed image file and reads an original image size while comparing the read original image size and an image size required for display and performing an operation of a size ratio. A JPEG expansion section expands image data of the image file by MCU. A resizing section magnifies or reduces by MCU the image data expanded by the JPEG expansion section according to the size ratio obtained by the header information analysis section and transfers the magnified or reduced data to a display frame memory.

Image expansion and display method, image expansion and display device, and program for image expansion and display

Image data having a total number of pixels being H&#xd7;V is written in SDRAM having an enough number of recording domains capable of storing all the pixel data of the image data and the number of Column addresses set therein at 2(4&#x2266;n) in the order of lines after the implementation of a first image rotation processing at a rotation angle of 90&#xb0;&#xd7;m (0&#x2266;m&#x2266;3) to the image data and read from the SDRAM in the order of the lines after the implementation of a second image rotation processing at a rotation angle of 90&#xb0;&#xd7;p (0&#x2266;p&#x2266;3). In doing so, the recording domains of the SDRAM are divided into a plurality of recording blockshaving the number of the Column addresses set therein at 2(2&#x2266;q&#x2266;(n&#x2212;2) and capable of storing groups of the pixels for one line in the image data after the implementation of the first image rotation processing. The groups of the pixels for one line in the image data in an image direction after the implementation of the first image rotation processing are written in the recording blocks. The written image data is read from the SDRAM in an image direction after the implementation of the second image rotation processing.

Image processing method and image processing apparatus

In order to reduce the capacity of a line memory when converting image data that are input in a raster scan order into pixel block data such as 8&#xd7;8 pixels for JPEG compression and the like, data on the first 0th to 7th lines is written in an 8H line memory in a raster scan order. Next, while performing block reading, the writing of the next 8th to 15th lines is performed so as to follow the part that has been read. The block reading of the 8th to 15th lines is performed in an order from the area where the data on the 0th line was first stored to the area where the data on the 1st, 2nd . . . lines was stored. For this reason, the writing of the 16th to 23rd line that is performed simultaneously with the block reading of the 8th to 15th lines can be performed in the same manner as the writing of the first 0th to 7th lines. Therefore, block conversion can be performed using an 8H line memory capacity corresponding to 8 lines, whereas that corresponding to 16 lines has been conventionally required.

Growing community of inventors

Hyogo, Japan

Keiichi Tsumura