Method for scanning a card with video signal

• US 4,212,037 A
• Filed: 03/10/1978
• Issued: 07/08/1980
• Est. Priority Date: 03/17/1969
• Status: Expired due to Term

• Current Assignee: Jerome H. Lemelson
• Original Assignee: Jerome H. Lemelson
• Inventors: Lemelson, Jerome H.
• Primary Examiner(s): Moffitt, James W.
• Assistant Examiner(s): Faber, Alan
• Application Number:
  US05/885,264
• Time in Patent Office: 851 Days
• Field of Search: 360/33, 360/2, 360/101, 360/81, 360/35, 360/84, 360/87, 358/127, 358/102, 235/449
• US Class Current: 360/2
• CPC Class Codes: G06K 17/0016 Selecting or retrieving of images by means of their associated code-marks, e.g. coded microfilm or microfiche microfilm reading G03B21/11; computers therefor G06F16/00; teaching devices G09B5/02; accessing record carriers G11B27/002; static digital stores using optical elements G11C13/04; intermediate storage of facsimile picture signals H04N1/21
• CPC Class Codes: G06K 7/08 by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes
• CPC Class Codes: G07C 9/253 visually
• CPC Class Codes: G11B 15/602 for track selection, acquisition or following
• CPC Class Codes: G11B 15/6895 Automatic tape changing arrangements
• CPC Class Codes: G11B 25/04 using flat record carriers, e.g. disc, card
• CPC Class Codes: G11B 27/02 Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
• CPC Class Codes: G11B 27/102 Programmed access in sequence to addressed parts of tracks of operating record carriers access by moving the head G11B3/08, G11B5/54, G11B7/085, G11B21/022; by moving the record carrier G11B15/005, G11B17/005, by driving of both record carrier and head G11B15/1816
• CPC Class Codes: G11B 27/3027 used signal is digitally coded
• CPC Class Codes: G11B 27/322 used signal is digitally coded
• CPC Class Codes: G11B 5/53 Disposition or mounting of heads on rotating support
• CPC Class Codes: H04N 1/00326 with a data reading, recognizing or recording apparatus, e.g. with a bar-code apparatus arrangements for the associated working of recording or reproducing apparatus with related apparatus G11B31/00
• CPC Class Codes: H04N 1/2104 for one or a few pictures
• CPC Class Codes: H04N 1/2175 with local image input
• CPC Class Codes: H04N 5/78 using magnetic recording H04N5/91 takes precedence ; mechanical details in so far as non typical for television circuitry G11B5/00

Abstract

An apparatus and method are provided for transducing information with respect to record cards such as oblong cards containing magnetic recording material. In one form, a magnetic record card is made to conform or extend parallel to the cylindrical surface of a drum supporting a magnetic transducer which rotates to scan one or more selected tracks of the card. The card may extend in a circular or helical path while scanning occurs or may be driven in such a path during scanning.

Claims

1. A method of transducing information with respect to a record card comprising:

feeding a magnetic record card containing image information recordings extending along parallel tracks of said card in a flat condition into a card reading device,

automatically arcuately deforming said record card as it is fed through said card reading device,

rotating a magnetic transducing means in a first direction against the surface of the arcuately deformed record card while effecting relative movement between said record card and said rotating transducing means in a second direction in a manner to cause said transducing means to scan consecutive record tracks of said record card which tracks extend transverse to the longitudinal axis of the card, and

operating said magnetic transducing means as it scans selected tracks of said record card in a manner to cause said transducing means to generate signals on its output, which signals are representative of the recordings provide on the selected tracks so scanned to the exclusion of information recorded on the other tracks of the card and passing the signals generated in scanning said selected tracks to a signal processing means, and applying said signals to modulate an image generating means to generate an image representative of selected information recorded on said card.

2. A method in accordance with claim 1 wherein said record card is an elongated rectangularly shaped card and contains magnetic recordings extending along parallel tracks which are consecutively scanned by said transducing means as the transducing means rotates and the card and transducing means are relatively moved in said second direction as said transducing means rotates.

3. A method in accordance with claim 1 wherein the signals generated by said transducing means are applied to modulate the write-beam of a cathode ray tube to generate an image on the viewing screen of said cathroe ray tube.

4. A method in accordance with claim 3 wherein the tracks of said record card extend transverse to the longitudinal direction of said card.

5. A method in accordance with claim 4 wherein said transducing means is supported by an elongated drum and said card in driven in a helical path against the surface of said drum as the drum is rotated.

6. A method in accordance with claim 1 wherein said image information recorded on said magnetic record card comprises a plurality of composite video picture signals.

7. A method in accordance with claim 1 wherein said relative movement between said record card and said rotating transducing means in said second direction is effected by drawing said card in said second direction past said rotation transducing means.

8. A method of transducing information with respect to a record card comprising:

feeding a magnetic record card containing information recorded as document signals on transverse tracks of said card to a card reading device,

automatically arcuately deforming said magnetic record card as it is fed to make it conform to a portion of the surface of a drum and driving said card longitudinally past the peripheral surface of said drum while power rotating said drum at constant speed,

scanning transverse tracks of said card with a plurality of magnetic transducers supported by said drum as said drum rotates and causing said transducers to be modulated by said signals recorded on said transverse tracks of said card to generate output signals which are representative of the signals recorded on said card, and

passing said output signals generated in scanning selected tracks of said record card to an image generating means and applying said output signals to modulate said image generating means and generating an image by means of said image generating means which image is representative of the document signals reproduced from the card.