Information recording apparatus having parallel to serial and PPM signal converters
AssigneeNikon Corporation
InventorsNorikazu Yokonuma, Hideo Hibino, Youichi Yamazaki, Kazuyuki Kazami
Life of this patent
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Abstract
A camera comprises a photographic information output circuit section, a CPU, a PPM signal conversion circuit section, a drive section for a plurality of magnetic heads, and a film feeding section. The CPU converts several parallel data items which are output from the photographic information output circuit section into a single serial data item and outputs it to the PPM signal conversion circuit section provided separately from the CPU. The PPM signal conversion circuit section converts this single serial data item into several PPM signals, and then supplies the PPM signals to the magnetic head drive section.
Claims16
An information recording apparatus capable of magnetically and separately recording a plurality of pieces of information on a magnetic medium, comprising:
- an information output circuit which outputs a plurality of parallel data for said plurality of pieces of information;
- a clock output circuit which outputs a reference clock;
- a parallel to serial conversion circuit which converts said plurality of parallel data into one serial data based on said reference clock;
- a PPM signal conversion circuit which is provided separately from said parallel to serial conversion circuit and converts said serial data which is output from said parallel to serial conversion circuit into a plurality of PPM signals based on said reference clock;
- and
- a plurality of magnetic recording devices which magnetically record said plurality of PPM signals on said magnetic medium, respectively.
A camera equipped with an information recording apparatus capable of magnetically and separately recording a plurality of pieces of information related to photography on a magnetic medium, comprising:
- a photographic information output circuit which outputs a plurality of parallel data for said plurality of pieces of information related to photography;
- a clock output circuit which outputs a reference clock;
- a parallel to serial conversion circuit which converts said plurality of parallel data into one serial data based on said reference clock;
- a PPM signal conversion circuit which is provided separately from said parallel to serial conversion circuit and converts said serial data which is output from said parallel to serial conversion circuit into a plurality of PPM signals based on said reference clock;
- and
- a plurality of magnetic recording devices which magnetically record said plurality of PPM signals on said magnetic medium, respectively.
An information recording apparatus capable of magnetically and separately recording a plurality of pieces of information on a magnetic medium, comprising:
- information output means for outputting a plurality of parallel data for said plurality of pieces of information;
- clock output means for outputting a reference clock;
- parallel to serial conversion means for converting said plurality of parallel data into one serial data based on said reference clock;
- PPM signal conversion means, which is provided separately from said parallel to serial conversion means, for converting said serial data which is output from said parallel to serial conversion means into a plurality of PPM signals based on said reference clock;
- and
- plurality of magnetic recording means for magnetically recording said plurality of PPM signals on said magnetic medium, respectively.
A camera equipped with an information recording apparatus capable of magnetically and separately recording a plurality of pieces of information related to photography on a magnetic medium, comprising:
- photographic information output means for outputting a plurality of parallel data for said plurality of pieces of information related to photography;
- clock output means for outputting a reference clock;
- parallel to serial conversion means for converting said plurality of parallel data into one serial data based on said reference clock;
- PPM signal conversion means, which is provided separately from said parallel to serial conversion means, for converting said serial data which is output from said parallel to serial conversion means into a plurality of PPM signals based on said reference clock;
- and
- plurality of magnetic recording means for magnetically recording said plurality of PPM signals on said magnetic medium, respectively.
Dependencies are inferred from the claim text.