Patents by Inventor Yoshihiko Azuma
Yoshihiko Azuma has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 6249317Abstract: An automatic exposure control apparatus comprises a skin color extracting circuit for extracting a skin-colored portion from an input video signal and a focus condition detecting circuit for detecting a focus condition of the skin-colored portion. Exposure is controlled based on outputs of the two circuits. That is, when a skin-colored portion is extracted and it is detected that the skin-colored portion is in an in-focus condition, exposure is controlled so as to be appropriate with respect to the skin-colored portion.Type: GrantFiled: March 9, 1994Date of Patent: June 19, 2001Assignee: Minolta Co., Ltd.Inventors: Nobuo Hashimoto, Keizou Ochi, Gen Sasaki, Kenji Mizumoto, Hiroaki Kubo, Yoshihiko Azuma, Takehiro Katoh, Hiroshi Ootsuka
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Patent number: 6072526Abstract: An automatic exposure control apparatus comprises a skin color extracting circuit for extracting a skin-colored portion from an input video signal and a focus condition detecting circuit for detecting a focus condition of the skin-colored portion. Exposure is controlled based on outputs of the two circuits. That is, when a skin-colored portion is extracted and it is detected that the skin-colored portion is in an in-focus condition, exposure is controlled so as to be appropriate with respect to the skin-colored portion. A skin color correction unit can correct colors corresponding to the skin color from the video signal.Type: GrantFiled: July 3, 1997Date of Patent: June 6, 2000Assignee: Minolta Co., Ltd.Inventors: Nobuo Hashimoto, Keizou Ochi, Gen Sasaki, Kenji Mizumoto, Hiroaki Kubo, Yoshihiko Azuma, Takehiro Katoh, Hiroshi Ootsuka
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Patent number: 6055684Abstract: A sauna having (i) a sauna chamber of a size to accommodate a person therein, and two side walls, a front wall, a rear wall, and a ceiling, (ii) a ventilation opening in a wall of the sauna chamber, the opening being at a height corresponding to the location of the head of a person within the chamber and having a size sufficient to provide a low temperature sauna due to the communication of air between the interior and the exterior of the sauna chamber, (iii) a lid for selectively opening and closing the ventilation opening, and (iv) a detachable engaging mechanism for maintaining the lid in a preselected position relative to the opening, wherein the ventilation opening is substantially circular and has a diameter and an inner peripheral surface on the wall, and the detachable engaging mechanism has an annular engaging groove formed on the inner peripheral surface, a slider, an engaging claw on the slider, the slider being diametrically movable on the lid, a spring biasing the engaging claw into engagement wiType: GrantFiled: February 22, 1999Date of Patent: May 2, 2000Inventor: Yoshihiko Azuma
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Patent number: 5799215Abstract: A camera system comprises a brightness measuring circuit, a exposure line choosing circuit, an operable switch, a film driver and a film driving mode selector. The brightness measuring circuit measures brightness of a photographic scene to send a brightness value. The exposure line choosing circuit chooses one of a plurality of exposure lines in which each lines selects a combination of an aperture value and a shutter speed value at each brightness value. The film driver drives a film in either of a first mode in which the film is wound only one frame in response to the operation of the operable switch and a second mode in which the film is wound frame by frame continuously as long as the operable member is operated. The film driving mode selector selects one of the modes in accordance with the exposure line chosen by the choosing circuit.Type: GrantFiled: July 8, 1996Date of Patent: August 25, 1998Assignee: Minolta Co., Ltd.Inventors: Takehiro Katoh, Yoshihiko Azuma, Masayasu Hirano, Naohiro Kageyama, Toshihiko Ishimura, Kenji Tsuji, Hiroshi Ootsuka
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Patent number: 5796076Abstract: A sauna heater control having a plurality of electrical heater elements for heating a sauna chamber, an alternating current heater power circuit, a half-wave rectifier for selective inclusion in the alternating current heater power circuit, a plurality of circuits for connecting the electrical heater elements and the half-wave rectifier in various conductive pathways in the alternating current heater power circuit, and a switch for switching the electrical heater elements and the half-wave rectifier between the various conductive pathways.Type: GrantFiled: October 13, 1995Date of Patent: August 18, 1998Inventor: Yoshihiko Azuma
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Patent number: 5589934Abstract: A light measuring apparatus capable of measuring ambient light, flash light from a flash source directly connected to the light measuring apparatus and flash light from a flash source that is remote. A photoelectric sensor can convert the light into electrical signals when an operator starts a light measurement cycle. A flash light emission signal can be generated to a flash source. The computer circuit can process the light signals to determine the specific mode of operation of the light measuring process, and based upon that particular mode of operation to appropriately calculate measurement values.Type: GrantFiled: January 5, 1995Date of Patent: December 31, 1996Assignee: Minolta Co., Ltd.Inventors: Norihisa Hosoi, Susumu Shirai, Kenichiro Hibi, Yoshihiro Okui, Takehiro Katoh, Yoshihiko Azuma
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Patent number: 5576786Abstract: A camera system comprises a brightness measuring circuit, a exposure line choosing circuit, an operable switch, a film driver and a film driving mode selector. The brightness measuring circuit measures brightness of a photographic scene to send a brightness value. The exposure line choosing circuit chooses one of a plurality of exposure lines in which each lines selects a combination of an aperture value and a shutter speed value at each brightness value. The film driver drives a film in either of a first mode in which the film is wound only one frame in response to the operation of the operable switch and a second mode in which the film is wound frame by frame continuously as long as the operable member is operated. The film driving mode selector selects one of the modes in accordance with the exposure line chosen by the choosing circuit.Type: GrantFiled: July 20, 1994Date of Patent: November 19, 1996Assignee: Minolta Camera Kabushiki KaishaInventors: Takehiro Katoh, Yoshihiko Azuma, Masayasu Hirano, Naohiro Kageyama, Toshihiko Ishimura, Kenji Tsuji, Hiroshi Ootsuka
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Patent number: 5539495Abstract: A camera system comprises a brightness measuring circuit, a exposure line choosing circuit, an operable switch, a film driver and a film driving mode selector.The brightness measuring circuit measures brightness of a photographic scene to send a brightness value. The exposure line choosing circuit chooses one of a plurality of exposure lines in which each lines selects a combination of an aperture value and a shutter speed value at each brightness value. The film driver drives a film in either of a first mode in which the film is wound only one frame in response to the operation of the operable switch and a second mode in which the film is wound frame by frame continuously as long as the operable member is operated. The film driving mode selector selects one of the modes in accordance with the exposure line chosen by the choosing circuit.Type: GrantFiled: July 20, 1994Date of Patent: July 23, 1996Assignee: Minolta Camera Kabushiki KaishaInventors: Takehiro Katoh, Yoshihiko Azuma, Masayasu Hirano, Naohiro Kageyama, Toshihiko Ishimura, Kenji Tsuji, Hiroshi Ootsuka
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Patent number: 5504552Abstract: A camera system comprises a brightness measuring circuit, a exposure line choosing circuit, an operable switch, a film driver and a film driving mode selector. The brightness measuring circuit measures brightness of a photographic scene to send a brightness value. The exposure line choosing circuit chooses one of a plurality of exposure lines in which each lines selects a combination of an aperture value and a shutter speed value at each brightness value. The film driver drives a film in either of a first mode in which the film is wound only one frame in response to the operation of the operable switch and a second mode in which the film is wound frame by frame continuously as long as the operable member is operated. The film driving mode selector selects one of the modes in accordance with the exposure line chosen by the choosing circuit.Type: GrantFiled: February 28, 1994Date of Patent: April 2, 1996Assignee: Minolta Camera Kabushiki KaishaInventors: Takehiro Katoh, Yoshihiko Azuma, Masayasu Hirano, Naohiro Kageyama, Toshihiko Ishimura, Kenji Tsuji, Hiroshi Ootsuka
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Patent number: 5319413Abstract: A camera system comprises a brightness measuring circuit, a exposure line choosing circuit, an operable switch, a film driver and a film driving mode selector.The brightness measuring circuit measures brightness of a photographic scene to send a brightness value. The exposure line choosing circuit chooses one of a plurality of exposure lines in which each lines selects a combination of an aperture value and a shutter speed value at each brightness value. The film driver drives a film in either of a first mode in which the film is wound only one frame in response to the operation of the operable switch and a second mode in which the film is wound frame by frame continuously as long as the operable member is operated. The film driving mode selector selects one of the modes in accordance with the exposure line chosen by the choosing circuit.Type: GrantFiled: November 25, 1992Date of Patent: June 7, 1994Assignee: Minolta Camera Kabushiki KaishaInventors: Takehiro Katoh, Yoshihiko Azuma, Masayasu Hirano, Naohiro Kageyama, Toshihiko Ishimura, Kenji Tsuji, Hiroshi Ootsuka
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Patent number: 5245379Abstract: A camera system including interchangeable lenses each having a switch to control many functions provided to the camera system. By simply operating one lens switch, the working mode of auto-focusing (AF) functions of the camera system can be changed: single-spot AF/multi-spot AF modes, one-shot AF/continuous AF modes, and focus-locing/non-locking modes. When used with an IC card also attached to the camera body, the lens switch can further control the functions of the camera system added or selected by the IC card.Type: GrantFiled: May 12, 1992Date of Patent: September 14, 1993Assignee: Minolta Camera Kabushiki KaishaInventors: Yoshihiko Azuma, Takehiro Katoh, Hiroshi Ootsuka, Toshihiko Ishimura, Masataka Hamada, Katsumi Kozakai, Norio Ishikawa, Masayuki Ueyama
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Patent number: 5235379Abstract: A camera system comprises a selector, an operable switch, a changing circuit and an inhibiting circuit. The selector selects one of a plurality of exposure lines. The changing circuit change as combination of the aperture value and the shutter speed value determine by both the selected exposure line and a brightness value in response to the operation of the operable switch. The inhibiting circuit inhibits the operation of changing circuit when a predetermined exposure line is selected by the selector. In the camera system, a photographer may only select the exposure mode through the operable switch in accordance with his intention and purpose in photography, and then the change of the exposure combination is inhibited in a certain exposure mode.Type: GrantFiled: May 16, 1989Date of Patent: August 10, 1993Assignee: Minolta Camera Kabushiki KaishaInventors: Takehiro Katoh, Yoshihiko Azuma, Masayasu Hirano, Naohiro Kageyama, Toshihiko Ishimura, Kenji Tsuji, Hiroshi Ootsuka
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Patent number: 5223884Abstract: A camera includes an object distance detecting device. The detected object distance can be used to calculate magnification which, in turn, can be used to determine an aperture value. The object distance detecting device can be selectively operated depending on, for example, whether flash lighting is being used.Type: GrantFiled: August 16, 1990Date of Patent: June 29, 1993Assignee: Minolta Camera Kabushiki KaishaInventors: Takehiro Katoh, Yoshihiko Azuma, Masayasu Hirano, Naohiro Kageyama, Toshihiko Ishimura, Kenji Tsuji, Hiroshi Ootsuka
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Patent number: 5130737Abstract: A bracket photographing apparatus for a camera system using a flash light unit. In a flash bracket photographing, a series of photographs (frames) are taken with the film exposure differing between the frames, where the exposure difference is caused by a change in the light emitting amount of the flash light unit. The invention also considers the case where a flash light unit is not attached to the camera body, or is not controllable by the system (e.g., the attached flash light unit is not a controllable type).Type: GrantFiled: February 12, 1991Date of Patent: July 14, 1992Assignee: Minolta Camera Kabushiki KaishaInventors: Yoshihiko Azuma, Takehiro Katoh, Naohiro Kageyama, Masayasu Hirano
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Patent number: 5111285Abstract: A video printer device is disclosed which is capable of printing out a high quality still image by subjecting image data obtained from a continuous video signal such as a television signal or the like, to noise processing and tone processing to improve the quality of the same. Upon subjecting said video signal to the noise and tone processings, a processed image can be displayed on a screen of a monitor, and checked and corrected on the same screen on real time.Type: GrantFiled: May 14, 1990Date of Patent: May 5, 1992Assignee: Dai Nippon Insatsu Kabushiki KaishaInventors: Shuji Fujita, Masashi Narita, Masanori Akada, Yoshihiko Azuma
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Patent number: 5019851Abstract: A camera system including interchangeable lenses each having a switch to control many functions provided to the camera system. By simply operating one lens switch, the working mode of auto-focusing (AF) functions of the camera system can be changed: single-spot AF/multi-spot AF modes, one-short AF/continuous AF modes, and focus-locing/non-locking modes. When used with an IC card also attached to the camera body, the lens switch can further control the functions of the camera system added or selected by the IC card.Type: GrantFiled: May 10, 1989Date of Patent: May 28, 1991Assignee: Minolta Camera Kabushiki KaishaInventors: Yoshihiko Azuma, Takehiro Katoh, Hiroshi Ootsuka, Toshihiko Ishimura, Masataka Hamada, Katsumi Kozakai, Norio Ishikawa, Masayuki Ueyama
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Patent number: 5006877Abstract: A camera system comprises a brightness measuring circuit, a exposure line choosing circuit, an operable switch, a film driver and a film driving mode selector.The brightness measuring circuit measures brightness of a photographic scene to send a brightness value. The exposure line choosing circuit chooses one of a plurality of exposure lines in which each lines selects a combination of an aperture value and a shutter speed value at each brightness value. The film driver drives a film in either of a first mode in which the film is wound only one frame in response to the operation of the operable switch and a second mode is which the film is wound frame by frame continuously as long as the operable member is operated. The film driving mode selector selects one of the modes in accordance with the exposure line chosen by the choosing circuit.Type: GrantFiled: April 17, 1990Date of Patent: April 9, 1991Assignee: Minolta Camera Kabushiki KaishaInventors: Takehiro Katoh, Yoshihiko Azuma, Masayasu Hirano, Naohiro Kageyama, Toshihiko Ishimura, Kenji Tsuji, Hiroshi Ootsuka
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Patent number: 4994844Abstract: An camera system includes a body and an accessory which is attachable to the camera body. A controller is provided in the camera body for controlling camera function. And an operable switch is also provided in the camera body. A function data concerning with camera function is sent from the accessory to the camera body. The camera body receives the function data and determines in response to the operation of the operable switch whether or not the controller controls camera function based on the received function data. According to the camera system, it is possible to enable or disable the camera function depending on the accessory by simple operation with the accessory attached to the camera body.Type: GrantFiled: April 13, 1989Date of Patent: February 19, 1991Assignee: Minolta Camera Kabushiki KaishaInventors: Yoshihiko Azuma, Takehiro Katoh, Yasuteru Yamano, Masayasu Hirano, Hiroshi Ootsuka, Takeshi Egawa, Masaaki Nakai, Toshihiko Ishimura, Naohiro Kageyama
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Patent number: 4974011Abstract: A camera system including interchangeable lenses each having a switch to control many functions provided to the camera system. By simply operating one lens switch, the working mode of auto-focusing (AF) functions of the camera system can be changed: single-spot AF/multi-spot AF modes, one-shot AF/continuous AF modes, and focus-locking/non-locking modes. When used with an IC card also attached to the camera body, the lens switch can further control the functions of the camera system added or selected by the IC card.Type: GrantFiled: October 4, 1989Date of Patent: November 27, 1990Assignee: Minolta Camera Kabushiki KaishaInventors: Yoshihiko Azuma, Takehiro Katoh, Hiroshi Ootsuka, Toshihiko Ishimura, Masataka Hamada, Katsumi Kozakai, Norio Ishikawa, Masayuki Ueyama
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Patent number: 4937601Abstract: A winding and rewinding apparatus for a camera comprises a winding mechanism, a detector, a rewinding mechanism, a selector and a controller. The winding mechanism winds the film frame by frame, and the detector detects the completion of exposure of the roll of film which is wound by the winding mechanism. The rewinding mechanism rewinds the film automatically in response to the detection of the detecting means. The selector includes a selecting switch which is operable manually, for selecting in response to the operation of the selecting switch one of a first mode in which the operation of the rewinding mechanism is permitted and a second mode in which the operation of the rewinding mechanism is inhibited irrespective of the detection of the detector. The controller controls the rewinding mechanism in accordance with the mode selected by the selecting switch. According to such arrangement, the user can select a manual rewinding mode or an automatic rewinding mode by a simple operation.Type: GrantFiled: April 13, 1989Date of Patent: June 26, 1990Assignee: Minolta Camera Kabushiki KaishaInventors: Yoshihiko Azuma, Takehiro Katoh, Yasuteru Yamano, Masayasu Hirano, Hiroshi Ootsuka, Takeshi Egawa, Masaaki Nakai, Toshihiko Ishimura, Naohiro Kageyama