Data registering equipment for a camera

• US 4,053,909 A
• Filed: 02/06/1975
• Issued: 10/11/1977
• Est. Priority Date: 02/12/1974
• Status: Expired due to Term

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Ito, Tadashi, Ito, Fumio, Shinoda, Nobuhiko, Nakamoto, Soichi
• Primary Examiner(s): O'Connor, Edna M.
• Application Number:
  US05/547,462
• Time in Patent Office: 978 Days
• Field of Search: 354/105, 354/23 D, 354/109, 355/40, 355/41, 346/107 R, 346/107 A
• US Class Current: 396/318
• CPC Class Codes: G03B 17/245 Optical means
• CPC Class Codes: G03B 2217/243 Optical devices

Abstract

The present invention relates to an equipment which converts various data, including exposure setting data, for a photograph into codes so as to be stored in a register in order that the data stored in the register is later decoded and registered on the film. The equipment comprises a decoder for reading out and decoding the stored data in accordance with a signal corresponding to the feeding of the film and a plural number of registering heads operated by means of the output of the decoder, whereby the stored data is registered on the film in general indications such as letters or figures.

Claims

1. For a camera defining a film position and forming exposure information signals, a data recording apparatus comprising:

data setting means for having data set therein and generating pulses corresponding to a set value,

receiving means for receiving exposure information signals in the form of pulses,

a first gate coupled to said data setting means and receiving means for passing one of the output signals of said data setting means and exposure information signal of the receiving means,

a counter coupled to the first gate for memorizing the outputs of the first gate,

a decoder coupled to the counter for decoding the content memorized by the counter,

recording means coupled to the decoder for applying the memorized content decoded by the decoder to the film position as visible indications,

first pulse generating means to generate pulse signals in response to shifting of the position of the film,

second pulse generating means coupled to said first pulse generating means for generating timing pulses based on the pulse signals from said first pulse generating means and for setting the timing of the application by the recording means on the basis of the timing pulses thereof, and

a second gate connected between said decoder and recording means and coupled to said second pulse generator means for applying the output of said decoder on the recording means in synchonism with the timing pulses of said second pulse generating means.

2. An equipment according to claim 1 in which the recording means comprises lighting means and exposure control means for controlling the exposure on the film by said lighting means in accordance with the sensitivity of said film.

3. An equipment according to claim 2, in which said lighting means include illuminating diodes.

4. An apparatus according to claim 1, in which the data setting means comprises a key switch which sets the data manually, means coupled to the key switch for coding the output from the key switch, and means coupled to the coding means for arranging the output from the coding means into sequential signals.

5. A camera comprising:

a lens,

film holding means for defining a film position, exposure control means between the lens and the film position for assuming operating conditions which establish the amount of light passing between said lens and the film position, and for generating exposure signals indicative of the operating conditions,

data setting means for having data set therein and generating data pulses corresponding to the data set therein,

receiving means coupled to said exposure control means for receiving the exposure signals and generating exposure indicating pulses corresponding to the exposure signals,

a first gate coupled to said data setting means and said receiving means for passing the pulses from said data setting means and said receiving means,

a counter coupled to the first gate for memorizing the output of the first gate, a decoder coupled to the counter for decoding the content memorized by the counter, recording means coupled to the decoder for applying the memorized content decoded by the decoder to the film position as visible indications,

film sensing means at the film position for sensing the position of the film,

pulse generating means coupled to the film sensing means for generating timing pulse signals in response to shifting of the position of the film, and for setting the timing of the application by the recording means on the basis of timing pulses and

a second gate connected between said decoder and said recording means and coupled to said second generator means for applying the output of said decoder on the recording means in synchronism with the timing pulses of said second pulse generating means.