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US 2008/0186392 A1Published application
Image recording apparatus and method
AssigneeCanon Kabushiki Kaisha
InventorIchiro Matsuyama
Life of this patent
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Abstract
An image recording apparatus converts a frame number of stream data of a moving image signal recorded at a high speed frame rate and generates stream data of a low speed frame rate. The image recording apparatus records in a recording medium, already recorded stream data of a low speed frame rate and the generated stream data of a low speed frame rate so that both stream data can be continuously reproduced.
Claims11
An image recording apparatus comprising:
- a moving image generating unit configured to generate a moving image signal corresponding to a plurality of frame rates;
- an instruction unit configured to instruct a change of a frame rate of the moving image signal to be recorded in a recording medium;
- a recording unit configured to record the moving image signal by changing a first frame rate to a second frame rate that is faster than the first frame rate in response to an instruction from the instruction unit, when the moving image signal generated by the moving image generating unit is being recorded at the first frame rate;
- a reproduction unit configured to identify stream data of the moving image signal recorded by changing the first frame rate to the second frame rate, and to reproduce the identified stream data from the recording medium;
- and
- a frame rate converting unit configured to convert a frame number of the stream data reproduced by the reproduction unit, and to generate stream data of the first frame rate from the reproduced stream data,
- wherein the recording unit records the stream data of the first frame rate based on the moving image signal generated by the moving image generating unit, and stream data of the first stream rate generated by the frame rate converting unit in the recording medium such that the stream data of the first frame rate and the stream data of the first stream rate can be continuously reproduced.
4 more elements
An image recording method comprising:
- first recording wherein a moving image signal is recorded in a recording medium at a first frame rate;
- instructing to change a frame rate of the moving image signal to be recorded;
- second recording wherein the moving image signal is continuously recorded while the first frame rate is changed to a second frame rate that is faster than the first frame rate, in response to the instruction;
- reproducing of data wherein steam data of a moving image recorded by changing the first frame rate to the second frame rate is identified, and reproducing the identified stream data from the recording medium after terminating the second recording;
- frame rate converting wherein a frame number of stream data reproduced in the reproduction is converted and stream data of the first frame rate is generated from the reproduced stream data;
- third recording wherein the stream data of the first frame rate generated in the frame rate converting is recorded in the recording medium;
- and
- fourth recording wherein in the recording medium, information for continuously reproducing stream data of the first frame rate based on the moving image recorded in the first recording and stream data generated in the frame rate converting, is recorded.
5 more elements
A computer-readable storage medium having stored therein a program causing a computer to execute a method comprising:
- first recording wherein a moving image signal is recorded in a recording medium at a first frame rate;
- instructing to change a frame rate of the moving image signal to be recorded;
- second recording wherein the moving image signal is continuously recorded while the first frame rate is changed to a second frame rate that is faster than the first frame rate, in response to the instruction;
- reproducing of data wherein steam data of a moving image recorded by changing the first frame rate to the second frame rate is identified, and reproducing the identified stream data from the recording medium after terminating the second recording;
- frame rate converting wherein a frame number of stream data reproduced in the reproduction is converted and stream data of the first frame rate is generated from the reproduced stream data;
- third recording wherein the stream data of the first frame rate generated in the frame rate converting is recorded in the recording medium;
- and
- a fourth recording wherein in the recording medium, information for continuously reproducing stream data of the first frame rate based on the moving image recorded in the first recording and stream data generated in the frame rate converting, is recorded.
5 more elements
Dependencies are inferred from the claim text.