Photography – Having operator controlled data entry into camera – Manual data entry using peripheral device
Patent
1995-12-06
1997-10-14
Perkey, W. B.
Photography
Having operator controlled data entry into camera
Manual data entry using peripheral device
395479, 3642384, 364246, G03B 1700, G06F 1200, G06F 1300
Patent
active
056780826
ABSTRACT:
An electrical system apparatus is constructed as follows to easily attain the desired adjustment, repair and change for the version of a stored program on the user side even if a microcomputer containing a rewritable or unrewritable memory is used. That is, the electrical system apparatus includes a one-chip microcomputer containing a memory which is divided into a plurality of blocks and includes one specified block n set in a preset block of the memory for storing a control program for realizing a preset function or specification of the system apparatus, a specified block rewriting program stored in at lest one of the blocks 1 to (n-1) other than the specified block to rewrite the content of the specified block, and a communicating section accessible to the memory and having a serial communicating function, and the rewriting program permits data transmitted from an external device and received by the communicating section to be written into the specified block n.
REFERENCES:
patent: 4853733 (1989-08-01), Watanabe et al.
patent: 5502830 (1996-03-01), Aihara
Ishimaru Toshiaki
Maruyama Atsushi
Miyazawa Azuma
Olympus Optical Co,. Ltd.
Perkey W. B.
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