Apparatus for listing cinematographic film

Claim 1

An apparatus for listing cinematographic film, comprising means for reversibly feeding the film past an index position; means connected to said film feeding means for generating electric signals representing each picture frame fed past said index position and the direction in which the film is being fed; counting means responsive to said electric signals for counting the net number of picture frames fed past said index position in a given direction; means for visually displaying to an operator an enlarged form of the film section located at the index position at any moment; and data processing means connected to said counting means and provided with data and instruction input means in the form of a keyboard, said keyboard comprising a reset key activatable for resetting said counting means to a given initial count value, alphanumeric keys activateable for entering into the data processing means edge numbers provided on the film and appearing on said visual display means when located at said index position, and at least one calculate-and-store key activatable for instructing the data processing means to perform a calculating and storing process, said data processing mens being operable in response to an activation of said calculate-and-store key to calculate, on the basis of the current count value in said counting means and the edge number last entered into the data processing means, a positional information alternatingly for the picture frame currently located at said index position at the activation of said calcualte-and store-key and for the picture frame following immediately after the picture frame located at said index position at the last preceding activation of said calculate-and-store key, said positional information being expressed in the edge number most adjacent to the frame concerned and the number of picture frames in between, and to store said calculated positional information in a data storage.

Claim 2

An apparatus for listing cinematographic film, comprising means for reversibly feeding the film past an index position; means connected to said film feeding means for generating electric signals representing each picture frame fed past said index position and the direction in which the film is being fed; counting means responsive to said electric signals for counting the net number of picture frames fed past said index position in a given direction; means for visually displaying to an operator an enlarged form of the film section located at the index position at any moment; and data processing means connected to said counting means and provided with data and instruction input means in the form of a keyboard, said keyboard comprising a reset key activatable for resetting said counting means to a given initial count value, alphanumeric keys activateable for entering into the data processing means edge numbers provided on the film and appearing on said visual display means when located at said index position, and at least one calculate-and-store key activatable for instructing the data processing means to perform a calculating and storing process, said data processing mens being operable in response to an activation of said calculate-and-store key to calculate, on the basis of the current count value in said counting means and the edge number last entered into the data processing means, a positional information alternatingly for the picture frame currently located at said index position at the activation of said calcualte-and store-key and for the picture frame following immediately after the picture frame located at said index position at the last preceding activation of said calculate-and-store key, said positional information being expressed in the edge number most adjacent to the frame concerned and the number of picture frames in between, and to store said calculated positional information in a data storage.