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91. 发明专利

FR2489005A1 未知
公开(公告)号：FR2489005A1
公开(公告)日：1982-02-26
申请号：FR8115923
申请日：1981-08-19
申请人： MELLO CASSANHO ELIO JR DE
IPC分类号： G03B21/00 , A61K38/16 , G03B1/38 , G03B21/32 , G03B21/43 , G03B21/44 , G03B21/46 , G03B1/00
摘要： The invention relates to a system and mechanism of film feeding, traction, shuttering and adjustment in programmable audiovisual apparatus, with rapid frame change, which executes the indexing of one frame to the next one in accordance with a pre-established programmed signal, indexing only one frame at each signal, characterized by apparatus which renders the time taken to effect the frame change imperceptible and also allowing the establishing of all the stages of projection of animation, varying from one static frame at a time, up to the particular frame change speed desired.

92. 发明专利

AU7434881A PROJECTION SYSTEM 未知
公开(公告)号：AU7434881A
公开(公告)日：1982-02-25
申请号：AU7434881
申请日：1981-08-19
申请人： CASTANHO E D M JR
发明人： CASTANHO E D M
IPC分类号： G03B21/00 , A61K38/16 , G03B1/38 , G03B21/32 , G03B21/43 , G03B21/44 , G03B21/46 , G03B31/06 , G03B21/38
摘要： The invention relates to a system and mechanism of film feeding, traction, shuttering and adjustment in programmable audiovisual apparatus, with rapid frame change, which executes the indexing of one frame to the next one in accordance with a pre-established programmed signal, indexing only one frame at each signal, characterized by apparatus which renders the time taken to effect the frame change imperceptible and also allowing the establishing of all the stages of projection of animation, varying from one static frame at a time, up to the particular frame change speed desired.

93. 发明专利

DE2738276C3 未知
公开(公告)号：DE2738276C3
公开(公告)日：1981-12-24
申请号：DE2738276
申请日：1977-08-25
申请人： ROBERT BOSCH GMBH, 7000 STUTTGART, DE
发明人： PETERS, PAULUS JACOBUS, NIJMEGEN, NL
IPC分类号： G03B1/22 , G03B21/48 , G03B21/46

94. 发明专利

BR8004222A 未知
公开(公告)号：BR8004222A
公开(公告)日：1981-01-21
申请号：BR8004222
申请日：1980-07-08
申请人： GULF OIL CORP
发明人： KIRKPATRICK J , RUTTER J
IPC分类号： A01N43/82 , A01N43/824 , G03B1/22 , G03B21/46

95. 发明专利

FI802174A 未知
公开(公告)号：FI802174A
公开(公告)日：1981-01-10
申请号：FI802174
申请日：1980-07-07
申请人： GULF OIL CORP
发明人： KIRKPATRICK JOEL LEE , RUTTER JERRY LYNN
IPC分类号： A01N43/82 , A01N43/824 , G03B1/22 , G03B21/46 , C07D

96. 发明专利

DE2435033A1 未知
公开(公告)号：DE2435033A1
公开(公告)日：1976-01-29
申请号：DE2435033
申请日：1974-07-20
申请人： BOSCH GMBH ROBERT
发明人： FABRO ROBERTO
IPC分类号： G03B1/56 , G03B21/46 , G03B1/00 , G03B21/44

97. 发明专利

GB1404273A FILM FRAME COUNTER 未知
公开(公告)号：GB1404273A
公开(公告)日：1975-08-28
申请号：GB456073
申请日：1973-01-30
申请人： SINGER CO
IPC分类号： G03B21/44 , G03B21/46 , G09B9/30 , H03K21/02 , G03B1/60 , G06M3/14
摘要： 1404273 Cinematography SINGER CO 30 Jan 1973 [15 Feb 1972] 4560/73 Heading G2E [Also in Division G4] A film frame counter has an encoder 13 which generates a pulse 41 in response to movement of the film drive motor 11. A monostable multivibrator (mmv) 35 responds to the leading edge of pulse 45 and mmv 37 responds to the trailing edge of pulse 49. AND gate 39 is disabled when the pulse 47 is received (this corresponds to the period of film movement). The pulse 50, when received, is forwarded, provided the pulse 47 is absent. Pulse 50 corresponds to a film frame being stationary in the picture gate. The pulse 50 is forwarded to a binary counter 71. Numerals 41-51 indicate the state of the pulse in various parts of the circuit. As shown an inverter 21 is included which only forwards a pulse 43 if pulse 41 is sufficiently pronounced. This, the mmv 35, 37 and AND gate 39 ensure that circuit noise does not alter the reading of the counter 71. To provide a directional count a tachometer 73, which provides an output while even the film moves, provides an input to motion detector 61. The output 93 will be positive when no film motion is sensed and at ground regardless of the direction of any sensed film movement. Switch 53 issues a film direction command on line 54. Only when there is no film movement (positive output 93) will one of the AND gates 55, 59 forward an output indicative of the film direction command to bi-stable multivibrator (bmv) 63 whose output gates pulses 51 to counter 71 along the "up" or "down" lines. The counter 71 outputs to a register which in turn outputs to the computer. Both these occur on receipt of an input on line 110, this being generated by pulse 51 passing through mmv 97, 99 and bmv 101 to AND gate 105 whose output is controlled by the computer 106 via line 107. The output of AND gate 105 is also used to reset bmv 101. A direct command to clear the counter 71 can be issued by the computer on line 117.

98. 发明专利

SU479069A1 未知
公开(公告)号：SU479069A1
公开(公告)日：1975-07-30
申请号：SU1952105
申请日：1973-08-10
IPC分类号： G03B1/42 , G03B21/46

99. 发明专利

FR2183464A5 未知
公开(公告)号：FR2183464A5
公开(公告)日：1973-12-14
申请号：FR7315289
申请日：1973-04-27
申请人： EASTMAN KODAK CO
IPC分类号： G03B21/46 , G03B35/24 , B65H17/00 , G03D15/04

100. 发明专利

FR2176369A5 未知
公开(公告)号：FR2176369A5
公开(公告)日：1973-10-26
申请号：FR7308401
申请日：1973-03-08
申请人： BOSCH PHOTOKINO GMBH
IPC分类号： G03B21/46 , G03B21/00
摘要： A motion picture projector wherein a sprocket is mounted downstream of the film gate to normally transport the film lengthwise toward the takeup reel. A portion of the film guide mechanism between the gate and the takeup reel is pivotable by a cam to thereby move the film into or from engagement with the sprocket. The pivotable portion of the film guide mechanism further carries an elastic loop former which can increase the size of the loop in response to disengagement of film from the sprocket. The cam further serves to change the speed of the pull-down and to change the direction of film transport.

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