Signal transmitting device, signal transmitting method, signal receiving device, and signal receiving method
AssigneeSony Corporation
InventorShigeyuki Yamashita
Life of this patent
Estimating the term…
Abstract
For example, samples included in a frame constituted by a 3840×2160/24P,25P,30P/4:4:4,4:2:2,4:2:0/10,12-bit signal are mapped into first to fourth sub-images specified in the HD-SDI format, in units of two adjoining samples. Thus, it is possible to transmit through a transmission constitution for the HD-SDI format. The signal can be converted into serial digital data permitting a bit rate of 10.692 Gbps or the like and transmitted, and the receiving side can accurately reproduce original data.
Claims6
A signal transmitting device that transmits an input image signal in which the number of pixels of one frame is larger than the number of pixels specified in the HD-SDI format, comprising:
- a mapping unit that thins out pixel samples, which are extracted from each frame of the input image signal, in units of predetermined samples, fetches the thinned out samples in equal order frame by frame, maps the samples into active periods of first, second, third, and fourth sub-images conformable to the HD-SDI format, separates each of the mapped first, second, third, and fourth sub-images into a first-link transmission channel and a second-link transmission channel, and thus maps the sub-images into eight channels;
- a parallel-to-serial conversion unit that serially converts the mapped first, second, third, and fourth sub-images;
- and
- an output unit that outputs serial digital data which is serially converted by the parallel-to-serial conversion unit.
A signal transmitting method of transmitting an input image signal in which the number of pixels of one frame is larger than the number of pixels specified in the HD-SDI format, comprising:
- mapping processing of thinning out pixels, which are extracted from each frame of the input image signal, in units of predetermined samples, fetching the thinned out samples in equal order frame by frame, mapping the samples into active periods of first, second, third, and fourth sub-images conformable to the HD-SDI format, separating each of the mapped first, second, third, and fourth sub-images into a first-link transmission channel and a second-link transmission channel, and thus mapping the sub-images into eight channels;
- parallel-to-serial conversion processing of serially converting each of the first, second, third, and fourth sub-images that are mapped through the mapping processing;
- and
- output processing of outputting serial digital data which is serially converted through the parallel-to-serial conversion processing.
A signal receiving device that receives an image signal in which the number of pixels of one frame is larger than the number of pixels specified in the HD-SDI format, comprising:
- a receiving unit that receives first, second, third, and fourth sub-images into which an image signal is mapped and each of which is divided into a first-link channel and a second-link channel;
- and
- a reproduction unit that extracts one by one pixel samples allocated to active periods of first, second, third, and fourth sub-images received by the receiving unit, sequentially reallocates the pixel samples to one frame of the image signal, and restores thinned out pixels from the allocated samples.
A signal receiving method of receiving an image signal in which the number of pixels of one frame is larger than the number of pixels specified in the HD-SDI format, comprising:
- receiving processing of receiving first, second, third, and fourth sub-images into which an image signal is mapped and each of which is divided into a first-link channel and a second-link channel;
- and
- reproduction processing of extracting one by one pixel samples allocated to active periods of first, second, third, and fourth sub-images received by the receiving unit, sequentially reallocating the pixel samples to one frame of the image signal, and restoring thinned out pixels from the allocated samples.
Dependencies are inferred from the claim text.