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1. 发明专利

DE69733224T2 未知
公开(公告)号：DE69733224T2
公开(公告)日：2006-01-19
申请号：DE69733224
申请日：1997-05-28
申请人： CANON KK
发明人： SUGA AKIRA , MURAMOTO TOMOTAKA , SASAKURA TAKAO
IPC分类号： G03B19/02 , H04N5/225 , H04N5/765 , H04N5/77 , H04N5/781 , H04N5/907 , H04N5/91 , H04N9/804
摘要： In an image sensing and recording apparatus capable of recording image data on plural types of removable recording media, a recording speed of a recording medium for recording image data is recognized, then image sensing modes, including a single image sensing mode and a sequential image sensing mode, which are set in advance are classified into available image sensing mode and unavailable image sensing mode on the basis of the recognized recording speed. Further, image sensing parameters, including numbers of pixels per frame and frame rates for the sequential image sensing mode, which are set in advance are also classified into available image sensing mode and unavailable image sensing mode on the basis of the recognized recording speed of the recording medium. A user selects and sets desirable image sensing mode among the available image sensing mode or modes and desirable image sensing parameter or parameters among the available image sensing parameter or parameters, then performs an image sensing operation.

2. 发明专利

DE69733224D1 未知
公开(公告)号：DE69733224D1
公开(公告)日：2005-06-16
申请号：DE69733224
申请日：1997-05-28
申请人： CANON KK
发明人： SUGA AKIRA , MURAMOTO TOMOTAKA , SASAKURA TAKAO
IPC分类号： G03B19/02 , H04N5/225 , H04N5/765 , H04N5/77 , H04N5/781 , H04N5/907 , H04N5/91 , H04N9/804
摘要： In an image sensing and recording apparatus capable of recording image data on plural types of removable recording media, a recording speed of a recording medium for recording image data is recognized, then image sensing modes, including a single image sensing mode and a sequential image sensing mode, which are set in advance are classified into available image sensing mode and unavailable image sensing mode on the basis of the recognized recording speed. Further, image sensing parameters, including numbers of pixels per frame and frame rates for the sequential image sensing mode, which are set in advance are also classified into available image sensing mode and unavailable image sensing mode on the basis of the recognized recording speed of the recording medium. A user selects and sets desirable image sensing mode among the available image sensing mode or modes and desirable image sensing parameter or parameters among the available image sensing parameter or parameters, then performs an image sensing operation.

3. 发明专利

JP2001117186A IMAGE PICKUP DEVICE AND METHOD AND STORAGE MEDIUM 失效
公开(公告)号：JP2001117186A
公开(公告)日：2001-04-27
申请号：JP29459599
申请日：1999-10-15
申请人： CANON KK
发明人： SASAKURA TAKAO
IPC分类号： H04N5/232 , G03B37/00 , H04N5/235
摘要： PROBLEM TO BE SOLVED: To provide an image pickup device capable of preventing brightness or a hue from getting unnatural on a division boundary in one panoramic scene and reproducing the panoramic scene in focus in all the range of the scene. SOLUTION: In the case of photographing in a panorama assist mode in which photographing is performed by dividing one panoramic scene to plural, automatic exposure control is performed in photographing sequence at the time of turning on a switch SW1 and white balance processing is performed after photographing at the time of turning on a switch SW2 the same as normal single photographing in the case of taking the first picture. In the case of taking the second and succeeding pictures, the automatic exposure control and automatic white balance control are not performed but photographing and recording are performed under the same control as the first picture in the case of finder display at the time of turning of the switch SW1 and in the photographing sequence at the time of turning on the switch SW1. When the switch SW1 is temporarily turned off after photographing, automatic focus control is executed.

4. 发明专利

JPH0943507A ELECTRIC STILL CAMERA AND FOCUSING CONTROL METHOD THEREOF 失效
公开(公告)号：JPH0943507A
公开(公告)日：1997-02-14
申请号：JP19759595
申请日：1995-08-02
申请人： CANON KK
发明人： SASAKURA TAKAO , KURAHASHI SUNAO , OGURA SHIGEO , OKAUCHI SHIGEKI , FUKUSHIMA NOBUO , UDAGAWA YOSHIRO , KOBAYASHI FUTOSHI , SARUWATARI HIROSHI , TANAKA TSUNEFUMI
IPC分类号： G03B13/36 , G02B7/34 , G02B7/36 , H04N5/232
摘要： PROBLEM TO BE SOLVED: To unnecessitate an optical system and a sensor both used exclusively for AF(automatic focusing) by fetching the output image of a photographing element on each moved position of a pupil and performing focusing control of an optical system based on a defocusing amount obtained by the correlation arithmetic. SOLUTION: A pupil position is moved to symmetrical positions to the optical axis of an optical system for photographing, the output image of a photographing element on each moved position of a pupil is fetched and focusing control of the optical system is performed based on a defocusing amount obtained from its correlation arithmetic. Namely, sweep-out transfer, reading out only a necessary read-out area at an ordinary speed and others at high speed, is performed. Partial high-speed reading is performed as same as a first time, the data are fetched, correlation arithmetic between them and the first held data is performed and a defocusing amount is obtained. A lens is moved in the direction of optical axis based on the defocusing amount thus obtained and a pupil diaphragm for AF is withdrawn out of the optical path. Thus, phase difference AF operation and pupil time dividing phase difference AF operation are performed.

5. 发明专利

JPH07270750A IMAGE DISPLAY DEVICE 失效
公开(公告)号：JPH07270750A
公开(公告)日：1995-10-20
申请号：JP2593195
申请日：1995-01-19
申请人： CANON KK
发明人： SASAKURA TAKAO
IPC分类号： G02F1/13 , G02B27/22 , G02F1/133 , G09G3/36 , G09G5/00 , G09G5/36 , H04N13/04
摘要： PURPOSE:To observe a good stereoscopic picture at the time of observing e.g. a stereoscopic picture using two display systems by generating signals which control the amplitudes, etc., of signals in the transmission and display systems on the basis of picture information itself to compensate the difference between the two systems. CONSTITUTION:The driver control sections 2-1, 2-2 generate liquid crystal scanning signals from the signals processed in picture signal regenerative processing circuits 1-1, 1-2 and input them to LCD panels 3-1, 3-2, on which picture information is displayed by the liquid crystal scanning signals and lighting of backlight in the backlight control sections 4-1, 4-2. While viewing the transmitted display pictures having passed the LCD panels 3-1, 3-2, the observer operates an adjusting means 5 so that the right and left pictures visually agree with each other. The generation means 6 generates adjusting signals to be fed to the regenerative processing circuit 1-2 and the backlight control sections 4-2 to adjust the panel signals.

6. 发明专利

JPH07140378A FOCUSING METHOD 失效
公开(公告)号：JPH07140378A
公开(公告)日：1995-06-02
申请号：JP28631193
申请日：1993-11-16
申请人： CANON KK
发明人： SASAKURA TAKAO
IPC分类号： G03B13/36 , G02B7/28 , G02B7/34
摘要： PURPOSE:To prevent a photographing lens from passing over a range-finding feasible range in a search mode by making the maximum storage time of an imaging device shorter than a usual value and making the interval of fetching sensor output short in the search mode. CONSTITUTION:When the search mode is started, the distance ring of a lens is moved to the closest end so as to set the maximum storage time=X/4ms and the gain of an amplifier to a maximum of 16 fold. While the distance ring is moved, the storage of an AF sensor is performed so that the sensor output is fetched and correlative calculation is performed. Such operation is repetitively performed until it is judged that luminance and contrast are not low. Then, the maximum storage time is set to a value being 1/2 to 1/4 of a value (Xms) conventionally set in a silver salt camera, so that the photographing lens is prevented from passing over the range-finding feasible range in the course of the storage of the sensor in the search mode. However, when the storage time is set to be short, the sensor output becomes small. Then, in order to cope with it, the gain of a sensor amplifier 23 which is a maximum of 8 fold in the conventional manner is allowed to be 16 fold.

7. 发明专利

JPH04142520A IMAGE PICKUP DEVICE 失效
公开(公告)号：JPH04142520A
公开(公告)日：1992-05-15
申请号：JP26496190
申请日：1990-10-04
申请人： CANON KK
发明人： SASAKURA TAKAO
IPC分类号： G03B7/20 , H04N5/243
摘要： PURPOSE:To obtain the device which accurately performs actual-aperture photometry even when a mirror is small by automatically correcting a light measurement error due to a decrease in the quantity of marginal light due to the mirror. CONSTITUTION:A system control part 3 determines a shutter speed according to data on the aperture value of a photographic lens part 1 and a light measurement output and drives the shutter in an optical system 2. At this time, the light measurement output which is inputted to the control part 3 does not have a linear characteristic since the quantity of marginal light is decreased by the mirror below a certain aperture value. For the purpose, previously found correction values corresponding to respective aperture values are stored in the control part 3 and the output of a light measurement sensor 4 is corrected with the correction value corresponding to the current aperture value to obtain an accurate photometric value.

8. 发明专利

JPH0454782A PICTURE SIGNAL RECORDING AND REPRODUCING SYSTEM 失效
公开(公告)号：JPH0454782A
公开(公告)日：1992-02-21
申请号：JP16490490
申请日：1990-06-22
申请人： CANON KK
发明人： FUJIMOTO MAKOTO , OGURA TOKIHIKO , SASAKURA TAKAO , OHASHI KAZUHITO
IPC分类号： H04N5/91 , H04N5/92
摘要： PURPOSE:To surely record a picture signal corresponding to plural kinds of pictures having a different aspect ratio onto a recording medium by providing a recording means recording a 1st picture signal and a 2nd picture signal whose aspect ratios differ from each other onto a different area of the recording medium to the system. CONSTITUTION:An FM modulation luminance signal FM-Y, an FM modulation color difference line sequential signal FM-C, an ID signal, a TBC pilot signal and an HIT pulse are fed to an adder 111, in which they are added, and a recording picture signal having a frequency allocation is outputted from the adder 111, a recording picture signal by one field is recorded by a magnetic head 113 on one track of a video floppy 114 driven at a prescribed number of revolutions with a motor and a picture signal corresponding to a picture C is recorded on 4 tracks on the video floppy 114.

9. 发明专利

JPH02282974A PICTURE SIGNAL RECORDING AND REPRODUCING DEVICE 失效
公开(公告)号：JPH02282974A
公开(公告)日：1990-11-20
申请号：JP10421789
申请日：1989-04-24
申请人： CANON KK
发明人： SASAKURA TAKAO
IPC分类号： H04N5/956 , G11B20/02 , H04N9/83 , H04N9/89
摘要： PURPOSE:To prevent deterioration of image resolution due to a multiplex frequency of a reference signal by multiplexing a frequency of the reference signal for correcting a time axis after the frequency is made drastically apart from a luminance FM signal band at the time of recording and reproducing a black- and-white picture signal. CONSTITUTION:An output of a BPF 36 is a sine-wave signal of 2.5MHz while an output of a BPF 38 is a sine-wave signal of 1.25MHz. A switch 40 is connected to the side of a-contact in the case of color, and is connected to the side of b-contact in the case of black-and-white. The sine-wave signal selected by the switch 40 is impressed on an adder 42, and is multiplexed in frequency with an FM signal 30a outputted from a recording processing circuit 30 to be magnetically recorded to a video floppy disk 48. As stated above, when the picture signal is black-and-white, the 1.25MHz signal is frequency- multiplexed, so that this sine-wave signal is multiplexed in a band far remote from the luminance FM signal band, and hence the leakage of the sine-wave signal is drastically reduced. By this method, the deterioration of the resolution does not take place, and the picture with high picture quality is recorded and reproduced.

10. 发明专利

JPH02181572A PICTURE SIGNAL RECORDER 失效
公开(公告)号：JPH02181572A
公开(公告)日：1990-07-16
申请号：JP13389
申请日：1989-01-05
申请人： CANON KK
发明人： FUJIMOTO MAKOTO , OHASHI KAZUHITO , OGURA TOKIHIKO , SASAKURA TAKAO
IPC分类号： H04N1/417
摘要： PURPOSE:To improve picture quality by adding a burst signal the same in phase as the sampling phase of a picture signal and a length different according to a track position in the partial period of the picture signal, and recording the picture signal. CONSTITUTION:Identification/burst signals to synchronize with a sampling clock from an identification burst signal generator 121 different in phase according to the length of a track are added to adequate positions having no picture signal such as vertical blanking periods in picture signals from gamma correcting processing circuits 106 and 107 in adders 108 and 109. Next, the picture signals, to which the identification burst signals are added, are passed through still video recording process circuits 110 and 111 and address 112 and 113, added to a pilot signal from a pilot signal generator 120, and recorded in a video floppy 118. Thus, the accurate phase matching between the picture signals and the sampling clock can be executed, and high picture quality can be obtained.

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