Method and apparatus for editing motion picture film

Claim 3

The method recited in claim 1 wherein said track is fixed to a cassette containing the film.

Claim 4

The method recited in claim 1 including the step of blocking the passage of light on said axis during advancement of said film at said relatively high feed rates.

Claim 5

Apparatus for editing and projecting motion picture film, said apparatus comprising: means to establish a path of light through which said film is passed for projection; means to establish a record track having a storage capacity corresponding in magnitude to the length of film to be edited; movable means for detecting signals recorded on said track to delineate undesired film portions from desired film portions to be projected; drive means for advancing said film through said light path, said drive means including means to advance said detecting means along said track in synchronism with the advance of said film through said path of light, said track being fixedly positioned relative to said path of light at least during said Advancement of said film and said signal detecting means; and means to control said drive means in response to said signal detecting means to advance said desired film portions through said path at normal projection rates of feed and to advance said undesired film portions through said path at a relatively high rate of speed.

Claim 6

Apparatus for editing and projecting motion picture film, said apparatus comprising: means to establish a path of light through which said film is passed for projection; means to establish a record track having a storage capacity corresponding in magnitude to the length of film to be edited; movable means for detecting signals recorded on said track to delineate undesired film portions from desired film portions to be projected; drive means for advancing said film through said light path, said drive means including means to advance said detecting means along said track in synchronism with the advance of said film through said path of light, said track being fixedly positioned relative to said path of light at least during said Advancement of said film and said signal detecting means; and means to control said drive means in response to said signal detecting means to advance said desired film portions through said path at normal projection rates of feed and to advance said undesired film portions through said path at a relatively high rate of speed.

Claim 7

The apparatus recited in claim 4 including means to block said path of light during passage of said undesired film portions therethrough.

Claim 8

The apparatus recited in claim 4 including a cassette containing said film, said record track being mounted on an exterior surface of said cassette.

Claim 9

The apparatus recited in claim 6 wherein said record track is a magnetic tape adhesively secured to the exterior of said cassette and wherein said detecting means includes a magnetic transducing head.

Claim 12

The method recited in claim 8 additionally including the step of precluding the passage of light on said axis whenever said film is being advanced therethrough at said relatively high feed rates.

Claim 13

Apparatus for projecting motion picture film comprising a cassette in which said film is housed: means for establishing a path of light along a given axis; means for providing indicia along a track separate from said film and affixed to said cassette, said indicia delineating certain portions of said film not to be viewed during viewing operations associated with said film from other portions thereof intended to be viewed during such operations; an indicia sensing device; means for progressively advancing said film through said axis; means for effecting relative motion between said indicia sensing device and said track in synchronism with the advance of said film through said axis; and means for regulating the rate at which said film is advanced through said axis in response to said indicia sensing device between normal viewing feed rates during passage of said other portions of said film through said axis and relatively high feed rates during passage of said certain portions of said film through said axis.

Claim 14

Apparatus for projecting motion picture film comprising a cassette in which said film is housed: means for establishing a path of light along a given axis; means for providing indicia along a track separate from said film and affixed to said cassette, said indicia delineating certain portions of said film not to be viewed during viewing operations associated with said film from other portions thereof intended to be viewed during such operations; an indicia sensing device; means for progressively advancing said film through said axis; means for effecting relative motion between said indicia sensing device and said track in synchronism with the advance of said film through said axis; and means for regulating the rate at which said film is advanced through said axis in response to said indicia sensing device between normal viewing feed rates during passage of said other portions of said film through said axis and relatively high feed rates during passage of said certain portions of said film through said axis.

Claim 15

The apparatus of claim 10 additionally including means for precluding the passage of light on said axis whenever said film is being advanced therethrough at said relatively high feed rates.