| 摘要 |
High-resolution color and monochrome video images are recorded on and reproduced from a record medium. Red, green and blue signal components are recorded as respective monochrome-like signals in separate tracks, and since a chrominance component of the video signal is not recorded in each track, the bandwidth of the recorded video signal may exceed the bandwidth of a video signal that normally is stored on the record medium. The high-resolution color video signal is reproduced by reproducing three frames which contain the red, green and blue signal components, respectively, and by supplying these signal components as a single high-resolution color image. A high-resolution monochrome video signal is stored by sampling the monochrome video signal at a given clock signal to produce a first sampled signal and by sampling the monochrome video signal at an inverse clock signal to produce a second sampled signal which are recorded as separate monochrome frames. Upon reproduction, two frames corresponding to the two sampled signals are reproduced and combined in accordance with the clock and inverse clock signals to produce a high-resolution monochrome video image.
|
