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Class 396/105 - Using sound


Subclass of Class 396 - Photography
Definition: Subject matter wherein the distance from the camera to the
No. of patents: 48
Last issue date: 07/26/2011


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NumberTitleIssue Date
7986875Sound-based focus system and focus method thereof
A sound-based focus system includes an imaging device and focus controller. The imaging device is configured for capturing an image. The focus controller includes a sound detecting module and a control module. The sound detecting module is configured for obtaining t...
07/26/2011
7317872Remote microphone and range-finding configuration
Remotely operable electronic apparatus are applied to distance measurement and picture/sound recording wherein, for example, a remote unit may be equipped with a microphone and an active range finder coupled to an auto-focussing capability. In one embodiment a camer...
01/08/2008
7061428Frequency hopping range estimation with low power consumption
An arrangement comprising a master unit and one or more slave units, where the master sends out bursts, at specified intervals, in a frequency hopping manner, with each burst being at a different frequency. The slave responds with acknowledgements, and the signal st...
06/13/2006
6961090Two zone automatic lens focusing system for digital still cameras
A two zone lens auto-focusing system to be used in a digital still camera includes a picture taking lens, a solenoid to switch the lens focus point between near distance point and far distance point. The CPU or the electronically controlled distance measuring system...
11/01/2005
5995763Remote microphone and range-finding configurations
Remotely operable electronic apparatus are applied to distance measurement and picture/sound recording wherein, for example, a remote unit may be equipped with a microphone and an active range finder coupled to an auto-focussing capability. In one embodim...
11/30/1999
4799077Common drive for shutter blades and objective lens assembly
The shutter blades of a scanning blade shutter and the movable element of an adjustable focus lens in a single lens reflex camera are actuated by a single or common drive. The scanning blade shutter is coupled to the common drive by a rotatably mounted be...
01/17/1989
4531822Extended sonic acceptance angle
An autofocusing motion picture camera having an adjustable focus zoom lens and having means for periodically determining the distance to subjects within the focusing range of said lens is provided with an object presence sensing transducer having an accep...
07/30/1985
4512646Acoustic indicating device for cameras
A camera acoustic indicating device for indicating, by sound, attainment of an in-focus condition of a camera objective lens and warning possibility of a blur occuring exposure time due to low brightness of an object to be photographed. The sound for the ...
04/23/1985
4490814Sonic autofocus camera having variable sonic beamwidth
A photographic camera having a plurality of interchangeable, adjustable focus lenses and having a focus control system capable of focusing each such lens over a range of subject distances in response to a rangefinder derived signal is provided with a soni...
12/25/1984
4487494Automatic focusing apparatus using ultrasonic wave
An automatic focusing apparatus using an ultrasonic wave wherein the ultrasonic wave is used to measure the distance to an object by plural times, a plurality of distance data obtained through the plurality of distance measuring operations are compared to...
12/11/1984
4445763Hybrid camera arrangement
An improved "hybrid" exposure control system for a photographic camera apparatus operates to ignite a source of artificial illumination at a "hybrid" aperture value related to the camera-to-subject distance and having an overexposure capability which prog...
05/01/1984
4444478Hybrid camera arrangement
A "hybrid" exposure control system for a photographic camera apparatus controls exposure in response to both the firing of a quench strobe at an appropriate size aperture corresponding to the determined camera-to-subject distance and to the subsequent que...
04/24/1984
4443087Focus state indicator
A focus state indicator for a camera is provided such that the photographer may know a focus state in accordance with electrical signals respectively corresponding to the lens position in the previous focusing operation and a distance between a camera and...
04/17/1984
4440482Sonic autofocus camera having variable sonic beamwidth
A photographic camera having a plurality of interchangeable, adjustable focus lenses and having a focus control system capable of focusing each such lens over a range of subject distances in response to a rangefinder derived signal is provided with a soni...
04/03/1984
4435055Multiple frequency ranging apparatus for focus control
A photoplotter includes an autofocus control for maintaining a precise focal distance between a photohead in the plotter and the film surface which is exposed by the head. The autofocus control employs a dual frequency ultrasonic ranging apparatus which p...
03/06/1984
4396268Dual burst, wide range sonar system
A sonic ranging system providing at least two bursts of sonic energy of unequal duration directed toward a subject with the time interval between the bursts being no less than the round-trip time for the maximum range at which a subject is to be detected ...
08/02/1983
4381144Underwater camera enclosure including sonar range finding device
An underwater photographic system which includes an underwater camera enclosure having an underwater sonar range-finding apparatus for providing a signal to adjust the distance-related parameters of a camera enclosed therein. The enclosure is adapted to h...
04/26/1983
4375322Full range variable proportional fill flash system
A photographic exposure control system of the type for controlling both the duration of a photographic exposure interval and the amount of artificial illumination provided during the exposure interval includes the capability of increasing the amount of ar...
03/01/1983
4371245Photographing lens system with focus informing means
A photographing lens, which is to be mounted on a camera in an interchangeable manner is provided with a focus-informing means, which informs the photographer of focussings of the photographing lens during manual focussing operation thereof by buzzer or b...
02/01/1983
4364652Automatic focusing camera
An automatic focusing camera is provided with an ultrasonic distance measuring instrument capable of varying the directivity of an ultrasonic beam to be transmitted depending upon the angle of view of a photographic lens used. A plurality of circuit compo...
12/21/1982
4355873Photographic control system for varying both flash fire aperture and exposure termination in correspondence with film speed
In a photographic exposure control system of the type which provides a flash fire signal at an appropriate follow focus aperture value corresponding to the camera-to-subject distance range and which terminates the exposure interval as a function of scene ...
10/26/1982
4354748Photographic exposure system with computer controlled strobe unit
A microcomputer is used in an exposure control system and method for developing and controlling execution of a film exposure strategy based on selected pre-exposure inputs including scene brightness level and camera-to-scene distance. The computer is prep...
10/19/1982
4348087Photographic system for automatically charging electronic flash
A system for automatically controlling the charging operation of an electronic flash in a photographic apparatus operates to enable the electronic flash to charge in response to readying the camera in anticipation to implementing a photographic exposure c...
09/07/1982
4347590Area surveillance system
An area surveillance system which combines an ultrasonic intrusion detector, an electronic range finder, an instant camera and an alarm. The system is packaged in a temper-proof housing and is particularly suitable for the protection of residential and co...
08/31/1982
4346971Photographic apparatus with controlled shutter blade time out
A photographic camera is provided with a fully automatic exposure control system for determining the camera-to-subject range either directly by sonic ranging or indirectly by sampling reflected flash light immediately subsequent to the firing of a source ...
08/31/1982
4335944Apparatus for underwater image-recording as by sonar-triggered elapsed time strobe photography and the like
This disclosure is concerned with improvements in underwater elapsed time strobe-camera apparatus and the like involving sonar-triggering by a sonar beam generated co-axially with and about the camera lens axis and, as a result of novel circuits, size-red...
06/22/1982
4334744Photographic apparatus having synchronized flash
Photographic apparatus, e.g., a camera, having a synchronized flash. The camera includes a ranging system, an objective lens assembly movable between first and second positions for focusing an object at the camera's focal plane, a source of artificial ill...
06/15/1982
4331409Photographic apparatus with dual function sonic transducer
An autofocusing camera having an ultrasonic ranging system, formed in part by a sonic transducer, for measuring subject distance is provided with an audio system which incorporates the same sonic transducer for providing the camera operator with audible i...
05/25/1982
4329031Photographic system for varying flash fire aperture as a function of ambient scene light
In a photographic exposure control system of the type which provides a flash fire signal at an appropriate follow focus aperture value corresponding to the camera-to-subject distance range, the ambient scene light intensity is measured prior to exposure a...
05/11/1982
4317624Strobe camera having range correlated scanning blade endoding
A flash camera having a range finder, a blade position sensor for producing an output representative of the position of the displaceable blades of a scanning shutter, a flash firing apparatus that includes a position/distance converter responsive to the o...
03/02/1982
4315676Camera with auto ranging focusing and flash fire control
An automatic camera apparatus includes an integrated exposure control system comprising a sonar rangefinder for first determining camera-to-subject range and then setting the objective lens focus condition to correspond to the determined camera-to-subject...
02/16/1982
4309098Autofocus cine camera having automatic variable speed focusing
A photographic camera having an adjustable focus lens is provided with an automatic focus control system to focus said lens at one focusing rate if the lens focusing movement necessary to focus said lens to the proper subject-in-focus position is greater ...
01/05/1982
4307952Auto focus camera with electronic lens disc pawl release arrangement
An automatic focusing control apparatus focuses subjects in any one of a plurality of different camera-to-subject distance ranges by transmitting a sonar ranging signal and at the same time displacing an objective lens to move through a plurality of diffe...
12/29/1981
4299467Focussing system for still and motion-picture cameras
A single transducer is used to emit acoustic radiation towards the subject and receive the reflected-back radiation to generate a received-back signal. Upon emission, a switch becomes conductive to initiate charging of a timing capacitor, the charging ter...
11/10/1981
4294531Auto-focus movie camera
The lens mount of a movie camera is automatically positioned to maintain an image of a subject in focus on a focal plane of a recording station by generating periodic range pulses having a characteristic directly related to subject range, and converting e...
10/13/1981
4290683Sonar responsive shutter blade time out control circuit
An exposure control circuit for a photographic camera is provided for determining the camera-to-subject range directly by sonic ranging and for automatically responding to the sonically determined subject range to provide either a shortened maximum exposu...
09/22/1981
4288153Automatic strobe camera
A photographic camera employing a replaceable film pack, which includes a battery, utilizes an integral strobe unit powered from the pack battery and automatically provides strobe operation for all ambient scene light conditions. The camera provides autom...
09/08/1981
4284336Automatic focusing camera
An automatic focusing camera wherein after the distance to object has been measured automatically by an ultrasonic or optical distance measuring means, a photographic lens is automatically shifted from the minimum focusing distance position to the infinit...
08/18/1981
4199246Ultrasonic ranging system for a camera
An ultrasonic ranging system for a camera includes an ultrasonic transducer responsive to a keying pulse for transmitting a frequency modulated burst of ultrasonic energy toward a subject. The leading half of the burst is a chirp whose frequency varies fr...
04/22/1980
4199244Automatic focusing camera
A focusing mechanism for a camera includes a drive arrangement for displacing the camera lens in accordance with the contents of a counter into which the output of a pulse generator is gated during a range pulse whose duration is directly related to the d...
04/22/1980
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