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US4674854A Expired / Lapsed US ⏱️ 0.0 years remaining

Information setting device for camera

Assignee: Canon Inc
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Filing: 1986-03-27
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Granted: 1987-06-23
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Expires: 2006-03-27
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Abstract

Abstract An information setting device in which for a desired photographic information is set as is increased or decreased from the preset value depending on what phase combination the signals of different phase produced in response to manual operation of a photographic information setting member have, the preset value is made to change when the information setting members is turned more than a predetermined angular distance to a click-stopped position.

Inventors

  • 👤 Masaharu Kawamura
  • 👤 Kazuhiko Arakawa

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 05:38
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/18; G03B7/00; G03B7/01

Claims Analysis

Total Claims: 16
Claim 1
Independent Claim 129 words
A camera comprising: (a) a dial-shaped setting member for setting a photographic information; (b) signal forming means for producing two signals of different phase from each other depending on the direction of rotation of said setting member; (c) control means for incrementing and decrementing the set photographic information depending on the phase difference of the two signals produced from said signal forming means; (d) clicks provided on said setting member, said clicks being positioned at locations at which said photographic information increments and decrements. (e) detecting means for detecting that said setting member is in a click position; and (f) prohibiting means responsive to no detection of the fact that said setting member is in the click position by said detecting means for prohibiting actuation of a camera release.
Claim 2
Dependent Claim 129 words
A camera comprising: (a) a dial-shaped setting member for setting a photographic information; (b) signal forming means for producing two signals of different phase from each other depending on the direction of rotation of said setting member; (c) control means for incrementing and decrementing the set photographic information depending on the phase difference of the two signals produced from said signal forming means; (d) clicks provided on said setting member, said clicks being positioned at locations at which said photographic information increments and decrements. (e) detecting means for detecting that said setting member is in a click position; and (f) prohibiting means responsive to no detection of the fact that said setting member is in the click position by said detecting means for prohibiting actuation of a camera release.
Claim 3
Dependent Claim 134 words
A camera comprising: (a) a dial-shaped setting member for setting a photographic information, said member including clicks; (b) signal forming means for producing two signals of different phase from each other depending on the direction of rotation of said setting member; (c) detecting means for detecting that said setting member is in any of the click positions; (d) control means for incrementing or decrementing the set photographic information depending on the phase difference of the two signals produced from said signal forming means, said means renewing the set photographic information when said detecting means detects that said setting member reaches any of the click positions; and (e) prohibiting means for prohibiting actuation of a camera release when said detecting means does not detect that said setting member is in any of the click positions.
Claim 4
Dependent Claim 134 words
A camera comprising: (a) a dial-shaped setting member for setting a photographic information, said member including clicks; (b) signal forming means for producing two signals of different phase from each other depending on the direction of rotation of said setting member; (c) detecting means for detecting that said setting member is in any of the click positions; (d) control means for incrementing or decrementing the set photographic information depending on the phase difference of the two signals produced from said signal forming means, said means renewing the set photographic information when said detecting means detects that said setting member reaches any of the click positions; and (e) prohibiting means for prohibiting actuation of a camera release when said detecting means does not detect that said setting member is in any of the click positions.
Claim 5
Dependent Claim 190 words
A photographic information setting device for a camera, comprising: (a) a rotationally operable member for setting photographic information, said member being provided with renewing positions for renewing the photographic information for each prescribed rotation; (b) detecting means for detecting shifting of said member to said renewing positions; (c) set information value shifting means for increasing or decreasing a set information value to shift it to another information value different from the heretofore set information value when shifting of said member to the renewing position is detected by said detecting means; and (d) a control circuit for inhibiting a information value changing action of said shifting means in response to a detection action of said detecting means in the case where said member returns to a start renewing position before said member shifts to a next renewing position if said member has already started shifting from said start renewing position to said next renewing position, and for permitting an information value changing action by said shifting means in response to a detection action of said detecting means when said member shifts from a start renewing position to a next renewing position.
Claim 6
Dependent Claim 190 words
A photographic information setting device for a camera, comprising: (a) a rotationally operable member for setting photographic information, said member being provided with renewing positions for renewing the photographic information for each prescribed rotation; (b) detecting means for detecting shifting of said member to said renewing positions; (c) set information value shifting means for increasing or decreasing a set information value to shift it to another information value different from the heretofore set information value when shifting of said member to the renewing position is detected by said detecting means; and (d) a control circuit for inhibiting a information value changing action of said shifting means in response to a detection action of said detecting means in the case where said member returns to a start renewing position before said member shifts to a next renewing position if said member has already started shifting from said start renewing position to said next renewing position, and for permitting an information value changing action by said shifting means in response to a detection action of said detecting means when said member shifts from a start renewing position to a next renewing position.
Claim 7
Dependent Claim 58 words
A camera according to claim 3, wherein said shifting means increases the set information value when the operable member shifts in one direction from a start renewing position to a next renewing position, and decrease the set information value when the operable member shifts in a reverse direction from a start renewing position to a next renewing position.
Claim 8
Dependent Claim 407 words
A photographic information setting device for a camera, comprising: (a) a rotationally operable member for setting photographic information, said member being provided with renewing positions for renewing the photographic information for each prescribed rotation; (b) signal forming means for forming output signals corresponding to positions of said member, said means being arranged for forming, in turn, a first output signal and at least a second output signal and a third output signal as said member rotates from a start renewing position, in a first direction, and shifts toward a next renewing position, then thereafter forming said first output signal when said member has shifted into said next renewing position, said means being arranged for forming, in turn, the first output signal and at least said third and second output signals as said member rotates from said renewing position, in a second direction reverse to the first direction, and shifts toward another next renewing position, then thereafter forming the first output signal when said member has shifted into said another next renewing position; and (c) an information setting circuit for detecting the output signals of said signal forming means and for shifting a heretofore set value to another set value when the first output signal is produced as a next signal after the above mentioned third output signal is formed during a period of time before the first output signal is again indicated when the second output signal is indicated as a next signal after the output signal indicates the first output signal; and (d) said circuit being arranged to shift the heretofore set value to another set value when the first output signal is produced as a next signal after the above mentioned second output signal is formed during a period of time until the first output signal is indicated again at a time when the third output signal is indicated as a next signal after the above mentioned output signal indicates the first output signal so that when the second output signal is formed subsequent to the first output signal the first output will not be formed subsequent to the third output signal, then when the first output signal is again formed and when the third output signal is formed subsequent to the first output signal the first output signal will not be formed subsequent to the second output signal, and when the first output signal is formed again the set value will not be changed.
Claim 9
Dependent Claim 407 words
A photographic information setting device for a camera, comprising: (a) a rotationally operable member for setting photographic information, said member being provided with renewing positions for renewing the photographic information for each prescribed rotation; (b) signal forming means for forming output signals corresponding to positions of said member, said means being arranged for forming, in turn, a first output signal and at least a second output signal and a third output signal as said member rotates from a start renewing position, in a first direction, and shifts toward a next renewing position, then thereafter forming said first output signal when said member has shifted into said next renewing position, said means being arranged for forming, in turn, the first output signal and at least said third and second output signals as said member rotates from said renewing position, in a second direction reverse to the first direction, and shifts toward another next renewing position, then thereafter forming the first output signal when said member has shifted into said another next renewing position; and (c) an information setting circuit for detecting the output signals of said signal forming means and for shifting a heretofore set value to another set value when the first output signal is produced as a next signal after the above mentioned third output signal is formed during a period of time before the first output signal is again indicated when the second output signal is indicated as a next signal after the output signal indicates the first output signal; and (d) said circuit being arranged to shift the heretofore set value to another set value when the first output signal is produced as a next signal after the above mentioned second output signal is formed during a period of time until the first output signal is indicated again at a time when the third output signal is indicated as a next signal after the above mentioned output signal indicates the first output signal so that when the second output signal is formed subsequent to the first output signal the first output will not be formed subsequent to the third output signal, then when the first output signal is again formed and when the third output signal is formed subsequent to the first output signal the first output signal will not be formed subsequent to the second output signal, and when the first output signal is formed again the set value will not be changed.
Claim 10
Dependent Claim 68 words
A camera according to claim 5, wherein said information setting circuit increases the set value when the output of the signal forming means changes again to the first output after having changed through the first, second and third outputs, and decreases the set value when the output of the signal forming means changes again to the first output after having changed through the first, third and second outputs.
Claim 11
Dependent Claim 136 words
A camera comprising: (a) rotationally operable member; (b) signal forming means forming signals which indicate and set information represented by a rotating direction and a rotating position of said operable member by operating said rotationally operable member; (c) control means for detecting a signal from said signal forming means and controlling incrementing or decrementing of the set information, wherein said operable member has a stable position at which a signal state of said signal forming means is made as a specified state, and said control means is arranged to increment and decrement the set information when said signal exhibits the specified state, and (d) prohibiting means for allowing a release action of the camera when said operable member is at said stable position and prohibiting the release action when it is not at the stable position.
Claim 12
Dependent Claim 136 words
A camera comprising: (a) rotationally operable member; (b) signal forming means forming signals which indicate and set information represented by a rotating direction and a rotating position of said operable member by operating said rotationally operable member; (c) control means for detecting a signal from said signal forming means and controlling incrementing or decrementing of the set information, wherein said operable member has a stable position at which a signal state of said signal forming means is made as a specified state, and said control means is arranged to increment and decrement the set information when said signal exhibits the specified state, and (d) prohibiting means for allowing a release action of the camera when said operable member is at said stable position and prohibiting the release action when it is not at the stable position.
Claim 13
Dependent Claim 14 words
A camera according to claim 7, wherein said rotationally operable member is a dial.
Claim 14
Dependent Claim 176 words
A camera comprising: (a) rotationally operable member: (b) signal forming means forming signals which indicate a rotating direction and a rotating position of said operable member by operating said rotationally operable member; (c) control means for detecting a signal from said signal forming means and for controlling incrementing or decrementing of set information, wherein said operable member has a stable position at which said signal forming means indicates a specific value, said signal forming means changing its output from said specific value in a predetermined sequence to a next specific value while said operable member shifts from said stable position to a next stable position and said control means detecting that the output of said signal forming means has shifted from said specific value to said next specific value in a predetermined sequence to cause incrementing or decrementing of the set information; and (d) prohibiting means for allowing a release action of the camera when said operable member is at said stable position and prohibiting the release action when it is not at the stable position.
Claim 15
Dependent Claim 176 words
A camera comprising: (a) rotationally operable member: (b) signal forming means forming signals which indicate a rotating direction and a rotating position of said operable member by operating said rotationally operable member; (c) control means for detecting a signal from said signal forming means and for controlling incrementing or decrementing of set information, wherein said operable member has a stable position at which said signal forming means indicates a specific value, said signal forming means changing its output from said specific value in a predetermined sequence to a next specific value while said operable member shifts from said stable position to a next stable position and said control means detecting that the output of said signal forming means has shifted from said specific value to said next specific value in a predetermined sequence to cause incrementing or decrementing of the set information; and (d) prohibiting means for allowing a release action of the camera when said operable member is at said stable position and prohibiting the release action when it is not at the stable position.
Claim 16
Dependent Claim 14 words
A camera according to claim 9, wherein said rotationally operable member is a dial.

References Cited (Backward Citations)

US4089011A Cited
US4092656A Cited
US4304482A Cited
US4118716A Cited
US4165164A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1990-06-22 1990-12-22 1991-06-23 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1994-06-22 1994-12-22 1995-06-23 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1998-06-22 1998-12-22 1999-06-23 $7700.00 Window Closed / Lapsed

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