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US 8,558,916 B2Granted
Electronic still camera having cache control function
AssigneeNikon Corporation
InventorsMasaki Hayashi, Morihiro Takagi
Life of this patent
Estimating the term…
Abstract
An electronic still camera includes: a detection unit that detects whether or not a detachable recording medium has a cache function; and a validating unit that validates the cache function when the detection unit detects that the recording medium has the cache function.
Claims7
A camera, comprising:
- an internal memory in which data are recorded;
- a loading unit at which a recording medium is to be loaded, the recording medium including at least a nonvolatile memory and a cache memory;
- and
- a control unit that executes a first control procedure by chronologically executing:
- a first processing where first data output from the internal memory are recorded into the cache memory;
- a second processing where second data output from the internal memory are recorded into the cache memory without recording, into the nonvolatile memory, the first data recorded into the cache memory;
- and
- a third processing where, in a case of recording third data output from the internal memory into the cache memory, if the cache memory does not have capacity for recording the third data, the first data recorded into the cache memory are recorded into the nonvolatile memory and the third data are recorded into the cache memory, without recording, into the nonvolatile memory, the second data recorded into the cache memory.
5 more elements
A camera system comprising a camera and a recording medium, wherein:
- the recording medium comprises:
- a nonvolatile memory;
- and
- a cache memory;
- and the camera comprises:
- an internal memory in which data are recorded;
- a loading unit at which the recording medium is to be loaded;
- and
- a control unit that executes a first control procedure by chronologically executing:
- a first processing where first data output from the internal memory are recorded into the cache memory;
- a second processing where second data output from the internal memory are recorded into the cache memory without recording, into the nonvolatile memory, the first data recorded into the cache memory;
- and
- a third processing, where, in a case of recording third data output from the internal memory into the cache memory, if the cache memory does not have capacity for recording the third data, the first data recorded into the cache memory are recorded into the nonvolatile memory and the third data are recorded into the cache memory, without recording, into the nonvolatile memory, the second data recorded into the cache memory.
10 more elements
Dependencies are inferred from the claim text.