| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 41 | System converting device | JP14898390 | 1990-06-07 | JPH0440785A | 1992-02-12 | SAGAWA KENTA; HAMADA MASANORI; ISOBE MITSUO |
| PURPOSE: To obtain a high quality standard television signal even in a moving picture by providing a moving picture processing circuit, a still picture processing circuit, a filter, a scanning line number converting circuit and so on and convert-processing with using a high definition television signal obtained from the moving picture processing circuit of a Multiple Sub-Nyquist sampling Enclosed (MUSE) decoder. CONSTITUTION: A moving picture processing circuit 23 to moving-picture-process a band-compressed high definition television signal, a still picture processing circuit 22, a mixer 26 to control the mixing ratio of a signal from the moving picture processing circuit 23 and the signal from the still picture processing circuit 22, a filter 101 to limit the vertical high frequency component of the signal from the moving picture processing circuit 23, a scanning line number converting circuit 32 to convert the signal from the filter 101 into the scanning line number of a standard television signal and so on are provided. That is, the converting of the number of scanning lines is executed with using the high definition television signal obtained from the moving picture processing circuit 23 of a MUSE decoder. Thus, the signal without picture quality deterioration in a moving picture owing to movement detecting omission can be obtained. COPYRIGHT: (C)1992,JPO&Japio | ||||||
| 42 | Digital video information unit with still picture continuously capturing function | JP2000284177 | 2000-09-19 | JP2002094941A | 2002-03-29 | KIKUCHI SHINICHI; KATAOKA HIDEO |
| PROBLEM TO BE SOLVED: To provide a digital video information unit having a still picture continuously capturing function that can continuously capture still pictures from a video signal without the need for sequentially selecting/setting one by one captured still picture by a user. SOLUTION: The digital video information unit with the still picture continuously capturing function consists of a key entry section (607) that designates a still picture continuously capturing mode, a frame change detection section (604) for detecting that video contents of a captured frame differ from those of a preceding frame on the basis of a received video signal after the shift to the still picture continuously capturing mode, an encoder section (601) for compressing frame data captured on the basis of the information from the detection section into I pictures in compliance with the MPEG to generate a pack structure designated by the RTR(Real Time Recording)-DVD standards, and a reproduction management information generating section (604) that generates reproduction management information (S-VOG-GI) from the information on the I picture generated by the encoder section. COPYRIGHT: (C)2002,JPO | ||||||
| 43 | Electronic still video camera with direct personal computer (PC) compatible digital format output | US10241886 | 2002-09-12 | US20030025807A1 | 2003-02-06 | Marc K. Roberts; Matthew A. Chikosky; Jerry A. Speasl |
| An electronic still camera comprising a lens, shutter, and exposure control system, a focus and range control circuit, a solid state imaging device incorporating a Charge Coupled Device (CCD) through which an image is focused, a digital control unit through which timing and control of an image for electronic processing is accomplished, an Analog-to-Digital (A/D) converter circuit to convert the analog picture signals into their digital equivalents, a pixel buffer for collecting a complete row of an image's digital equivalent, a frame buffer for collecting all rows of an image's digital equivalent, and a selectively adjustable digital image compression and decompression algorithm that compresses the size of a digital image and selectively formats the compressed digital image to a compatible format for either the IBM Personal Computer and related architectures or the Apple Macintosh PC architecture as selected by the operator so that the digital image can be directly read into most word processing, desktop publishing, and data base software packages including means for executing the appropriate selected decompression algorithm; and a memory input/output interface that provides both temporary storage of the digital image and controls the transmission and interface with a standard Personal Computer (PC) memory storage device such as a digital diskette. The digital diskette is removably inserted into the housing of the camera prior to use in recording digital image data. | ||||||
| 44 | Electronic still video camera with direct personal computer (PC) compatible digital format output | US615848 | 1990-11-20 | US5138459A | 1992-08-11 | Marc K. Roberts; Matthew A. Chikosky; Jerry A. Speasl |
| An electronic still camera comprising a lens, shutter, and exposure control system, a focus and range control circuit, a solid state imaging device incorporating a Charge Couple Device (CCD) through which an image is focused, a digital control unit through which timing and control of an image for electronic processing is accomplished, an Analog-to-Digital (A/D) converter circuit to convert the analog picture signals into their digital equivalents, a pixel buffer for collecting a complete row of an image's digital equivalent, a frame buffer for collecting all rows of an image's digital equivalent, and a selectively adjustable digital image compression and decompression algorithm that compresses the size of a digital image and selectively formats the compressed digital image to a compatible format for either the IBM Personal Computer and related architectures or the Apple Macintosh PC architecture as selected by the operator so that the digital image can be directly read into most word processing, desktop publishing, and data base software packages including means for executing the appropriate selected decompression algorithm; and a memory input/output interface that provides both temporary storage of the digital image and controls the transmission and interface with a standard Personal Computer (PC) memory storage device such as a digital diskette. The digital diskette is removable inserted into the housing of the camera prior top use in recording digital image data. | ||||||
| 45 | Progressive still frame mode | US944311 | 1997-10-06 | US6075554A | 2000-06-13 | Barry D. Andrews; Paul A. Voois |
| A still image is progressively transmitted over a communications channel by computing, encoding, and outputting for transmission difference information representing the difference between the still image and a previously-transmitted image that has been stored at a remote location. This process is repeated, with additional difference information being generated to supplement the image received at the remote location, such that the quality of the image at the remote location improves over time. The difference information may be encoded in a format compatible with existing video compression standards and processed by a receiving terminal regardless of the presence of still mode capability. | ||||||
| 46 | Video system | JP2000009992 | 2000-01-13 | JP2000165728A | 2000-06-16 | KODAMA YASUMASA |
| PROBLEM TO BE SOLVED: To utilize the merit of immediacy of an electronic camera by providing an image picking up means which outputs a video signal to an electronic still camera, a storing means which stores the video signal as a still picture, a displaying means which displays the video signal outputted from the image picking up means and a transmitting means which converts the video signal into a signal form of a prescribed standard and outputs it to a transmission line. SOLUTION: A video signal projected to a CCD 10 is converted into a digital signal and is compressed by a signal processing circuit 11 and a compression and expansion circuit 12. A recording and reading circuit 13 records the compressed video signal on recording media 14 in timing when a shutter is pressed down. Also, an output signal of the signal processing circuit 11 is projected to a monitor 2 through a reproduction circuit 16. When a user wants to see the picked up video, the video data recorded on the media 14 are read by the recording and reading circuit, expanded by the compression and expansion circuit 12, and are converted into an analog signal to be projected on the monitor 2 through the reproduction circuit 16. | ||||||
| 47 | Digital camera | JP2004062416 | 2004-03-05 | JP3993858B2 | 2007-10-17 | シコスキー，マシュウ，エイ．; スピースル，ジェリー，エイ．; ロバーツ，マーク，ケイ． |
| 48 | Two-way simple moving picture communication system | JP28136590 | 1990-10-19 | JPH04156194A | 1992-05-28 | HASEGAWA MAKOTO; KUNIMOTO YASUHIRO; NISHIMURA NAOMASA |
| PURPOSE: To attain 2-way transmission and display for not only a still picture but also a moving picture at a natural picture retrieval/registration terminal equipment by thinning a screen of a moving picture so as to form a few screens. CONSTITUTION: In the case of a television broadcast, even when picture elements are thinned to obtain less picture element number, the transmission is difficult through a high speed communication line used in general. However, one screen is thinned to 1/4 in both horizontal and vertical directions with 1/4 sampling in total 1/16, then the transmission of almost 10 screens/sec is attained through the communication line. Then when an input video is written in a natural picture memory 15, a picture bus control section 22 supports a standard fetch mode and a 1/4 sampling fetch mode. That is, the video image is reduced by 1/4 sampling fetch and the picture is compressed by one screen at a natural picture CODEC 13. Thus, the basic building block of the natural picture retrieval/ registration terminal equipment is unchanged to attain 2-way communication of a picture with moving expression between terminals. COPYRIGHT: (C)1992,JPO&Japio | ||||||
| 49 | Expansion method and compression method for still picture data or device executing the methods | JP3381393 | 1993-02-24 | JPH0646269A | 1994-02-18 | MAATEIN PII BOORITSUKU; JIEIMUSU DEI AREN; SUTEIIBUN EMU BURONSUTAIN |
| PURPOSE:To provide the expansion method and compression method for still picture data or a device executing the methods in which bits are used optimizingly while keeping compatibility with the JPEG standards. CONSTITUTION:The expansion method for still picture data to invert the conversion converting a sequence for a substantial value into a sequence for a conversion area coefficient is provided with a stage in which each conversion area coefficient is multiplied with a Q coefficient stored in an N-bit storage register in a form of M-bit exponent part identified to be a Q exponent part and an (N-M)-bit mantissa part identified to be a Q mantissa part and a value of a range larger than 2AN is provided to the Q coefficient by a form of Q coefficient=Q mantissa part *2AQ exponent part and with a stage in which a sequence of the multiplied conversion area coefficient is converted into a 2nd sequence approximated to the sequence for a substantial value. | ||||||
| 50 | Electronic Still Camera | US12040835 | 2008-02-29 | US20080158383A1 | 2008-07-03 | Tadashi OHTA; Takao Ikuma |
| An electronic still camera, for recording the image signal in compressed state in a memory medium such as a memory card, is provided with a calculation circuit, for calculating the remaining number of still recordable frames in the memory medium in more reliable manner, and the number of already recorded frames and the remaining number of still recordable frames are simultaneously displayed in order to inform the photographer of the remaining state of the memory card in securer manner.The remaining frame number is calculated in securer manner by detecting the remaining capacity of the memory card and dividing the remaining capacity with the amount of compressed signal averaged over the latest 100 image frames. A display device is provided for indicating thus determined remaining frame number together with the number of already recorded frames.For calculating the remaining frame number in more reliable manner, there are determined the average data amount of the recorded frames, the standard deviation, and the remaining capacity of the memory card, and the minimum remaining frame number is determined by dividing the remaining capacity with the average data amount plus standard deviation, while the maximum remaining frame number is determined by dividing the remaining capacity with the average data amount minus standard deviation. Also there is provided a display device for indicating the remaining frame number in the form of a range defined by the minimum and maximum remaining frame numbers. | ||||||
| 51 | Electronic still camera and method of operating same | US09749680 | 2000-12-28 | US20010000969A1 | 2001-05-10 | Tadashi Ohta; Takao Ikuma |
| An electronic still camera, for recording the image signal in compressed state in a memory medium such as a memory card, is provided with a calculation circuit, for calculating the remaining number of still recordable frames in the memory medium in more reliable manner, and the number of already recorded frames and the remaining number of still recordable frames are simultaneously displayed in order to inform the photographer of the remaining state of the memory card in securer manner. The remaining frame number is calculated in securer manner by detecting the remaining capacity of the memory card and dividing the remaining capacity with the amount of compressed signal averaged over the latest 100 image frames. A display device is provided for indicating thus determined remaining frame number together with the number of already recorded frames. For calculating the remaining frame number in more reliable manner, there are determined the average data amount of the recorded frames, the standard deviation, and the remaining capacity of the memory card, and the minimum remaining frame number is determined by dividing the remaining capacity with the average data amount plus standard deviation, while the maximum remaining frame number is determined by dividing the remaining capacity with the average data amount minus standard deviation. Also there is provided a display device for indicating the remaining frame number in the form of a range defined by the minimum and maximum remaining frame numbers. | ||||||
| 52 | Electronic still camera | JP10509794 | 1994-05-19 | JPH07312714A | 1995-11-28 | HAYASHI KENKICHI |
| PURPOSE:To improve the operation effect such as the adjustment of a field angle by converting a high resolution image signal into the NTSC system image signal in the case of image pickup by the high resolution electronic still camera and displaying the signal on a monitor in real time. CONSTITUTION:A picture element signal obtained by scanning an image formed on a high resolution CCD 12 is given to a pre-processing circuit 14, in which the signal is amplified to a prescribed level and image-processed and the result is fed to an A/D converter 16, which converts the signal into a digital value and it is stored in a frame memory. A control section 38 uses a control signal 120 to read picture element data from the memory while interleaving the data, the data are subjected to multiplication and addition processing to set the data to have a prescribed picture element arrangement and the result is fed to a YC processing section 18, in which the data are converted into a data form comprising a luminance signal Y and color difference signals C, and they are fed to a compression processing circuit. Then the profile of the Y data is corrected and the color of the C data is corrected, a D/A converter 24 converts the data into analog data, which are fed to a reproduction section 26, in which the NTSC system video signal is displayed on a monitor 29. Thus, even the picture element data with high resolution are displayed on a monitor with the standard resolution. | ||||||
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