EP0456369A2
Expired / Lapsed
EP
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Electronic camera featuring single image processing
Assignee: Canon Inc
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Filing: 1991-04-22
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Granted: —
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Expires: 2011-04-22
Abstract
Abstract An electronic camera includes a memory circuit for storing a video signal representing at least a single image, a signal processing circuit for conducting digital processing in a vertical direction with a predetermined characteristic on the video signal read out from the memory circuit in the vertical direction and for conducting digital processing in a horizontal direction with another predetermined characteristic which is different from the predetermined characteristic on the video signal read out from the memory circuit in the horizontal direction, and a control circuit for switching over reading out of the video signal from the memory circuit between the vertical direction and the horizontal direction and for switching over the processing characteristic of the signal processing circuit between the predetermined characteristic and the another predetermined characteristic which is different from the predetermined characteristic.
Inventors
- 👤 Toshihiko c/o Canon K.K. Mimura
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 16:53
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/21; H04N1/2104; H04N1/2112; H04N1/2137; H04N23/00; H04N23/80; H04N23/84; H04N25/00; H04N25/60; H04N25/61; H04N5/00; H04N5/14; H04N5/20; H04N5/205; H04N5/208; H04N2101/00
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
136 words
An electronic camera comprising: a memory means for storing a video signal representative of at least a single image; a signal processing means for conducting digital processing in a vertical direction with a predetermined characteristic on the video signal read out from said memory means in the vertical direction and for conducting digital processing in a horizontal direction with another predetermined characteristic which is different from said predetermined characteristic on the video signal read out from said memory means in the horizontal direction; and a control means for switching over reading out of the video signal from said memory means between the vertical direction and the horizontal direction and for switching over the processing characteristic of said signal processing means between said predetermined characteristic and said another predetermined characteristic which is different from said predetermined characteristic.
Claim 2
Dependent Claim
18 words
The electronic still camera according to claim 1, wherein said memory means comprises an X-Y addressing type memory.
Claim 3
Dependent Claim
17 words
The electronic still camera according to claim 2, wherein said X-Y addressing type memory comprises a RAM.
Claim 4
Dependent Claim
33 words
The electronic still camera according to claim 2, wherein said X-Y addressing type memory comprises a FIFO memory which allows for write-in and read-out operations of data in both horizontal and vertical directions.
Claim 5
Dependent Claim
40 words
The electronic still camera according to claim 4, wherein said FIFO memory includes a plurality of basic cells arranged in columns and rows, each of said basic cells having two data output lines and two data input lines connected thereto.
Claim 6
Dependent Claim
69 words
The electronic still camera according to claim 1, wherein said signal processing means includes a plurality of series-connected delaying elements, a single adder, and a plurality of coefficient units respectively connected between said individual delaying elements and said adder, a coefficient of each of said coefficient units which is set in the processing in the vertical direction being different from that set in the processing in the horizontal direction.
Claim 7
Dependent Claim
25 words
The electronic still camera according to claim 1, wherein the digital processing in the vertical direction in said signal processing means includes vertical aperture correction.
Claim 8
Dependent Claim
89 words
An electronic still camera comprising: (a) a memory means for storing a video signal representative of at least a single image, said memory means allowing for write-in and read-out operations of the video signal in both horizontal and vertical directions; (b) a signal processing means for conducting a predetermined signal processing on the video signal output from said memory means; and (c) a control means for changing the signal processing means depending on whether the signal is read out from said memory means in a horizontal or vertical direction.
Claim 9
Dependent Claim
18 words
The electronic still camera according to claim 8, wherein said memory means comprises an X-Y addressing type memory.
Claim 10
Dependent Claim
17 words
The electronic still camera according to claim 9, wherein said X-Y addressing type memory comprises a RAM.
Claim 11
Dependent Claim
33 words
The electronic still camera according to claim 9, wherein said X-Y addressing type memory comprises a FIFO memory which allows for write-in and read-out operations of data in both horizontal and vertical directions.
Claim 12
Dependent Claim
40 words
The electronic still camera according to claim 11, wherein said FIFO memory includes a plurality of basic cells arranged in columns and rows, each of said basic cells having two data output lines and two data input lines connected thereto.
Claim 13
Dependent Claim
69 words
The electronic still camera according to claim 8, wherein said signal processing means includes a plurality of series-connected delaying elements, a single adder, and a plurality of coefficient units respectively connected between said individual delaying elements and said adder, a coefficient of each of said coefficient units which is set in the processing in the vertical direction being different from that set in the processing in the horizontal direction.
Claim 14
Dependent Claim
19 words
The electronic still camera according to claim 8, wherein said signal processing means includes a digital signal processing means.
Claim 15
Dependent Claim
27 words
The electronic still camera according to claim 8, wherein the signal processing in the vertical direction in said signal processing means includes a digit vertical aperture correction.
Claim 16
Dependent Claim
79 words
An electronic still camera comprising: (a) an imaging means for producing a video signal by conducting photoelectric conversion on a light from an object; (b) a memory means for storing the video signal obtained by said imaging means; and (c) a signal processing means for conducting a predetermined signal processing on the signal read out from said memory means, said signal processing means changing its processing operations depending on how the signal is read out from said memory means.
Claim 17
Dependent Claim
34 words
The electronic still camera according to claim 16, wherein said memory means comprises an X-Y addressing type memory which allows for write-in and read-out operations of a signal in both horizontal and vertical directions.
Claim 18
Dependent Claim
33 words
The electronic still camera according to claim 16, wherein said signal processing means is changed depending on whether the signal is read out from said memory means in a horizontal or vertical direction.
Claim 19
Dependent Claim
69 words
The electronic still camera according to claim 16, wherein said signal processing means includes a plurality of series-connected delaying elements, a single adder, and a plurality of coefficient units respectively connected between said individual delaying elements and said adder, a coefficient of each of said coefficient units which is set in the processing in the vertical direction being different from that set in the processing in the horizontal direction.
Claim 20
Dependent Claim
52 words
A signal processing circuit comprising: a signal storage means; a control means for reading out a signal from said signal storage means in a predetermined read-out order; and a signal processing means for conducting a signal processing corresponding to the read-out order on the signal read out from said signal storage means.
Claim 21
Dependent Claim
50 words
The signal processing circuit according to claim 20, wherein said control means writes the output of said signal processing means again in said signal storage means so that a plurality of different signal processings can be conducted on the signal stored in said signal storage means on a time-sharing basis.
Claim 22
Dependent Claim
19 words
The signal processing circuit according to claim 20, wherein said signal storage means comprises an X-Y addressing type memory.
Claim 23
Dependent Claim
69 words
The signal processing circuit according to claim 20, wherein said signal processing means includes a plurality of series-connected delaying elements, a single adder, and a plurality of coefficient units respectively connected between said individual delaying elements and said adder, a coefficient of each of said coefficient units which is set in the processing in the vertical direction being different from that set in the processing in the horizontal direction.
Claim 24
Dependent Claim
15 words
The signal processing circuit according to claim 20, wherein said control means comprises a microcomputer.
Claim 25
Dependent Claim
57 words
A signal processing circuit comprising: memory means to store signal data from which the signal data may be read in a first order or in a second order; processing means to process signal data in a first manner or a second manner; and control means to control the operation of the memory means and the processing means.
Claim 26
Dependent Claim
24 words
A FIFO memory in which two dimensional data may be stored, the memory being readable and/or writable in the direction of either said dimension.
References Cited (Backward Citations)
No citation records indexed.
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