Method and apparatus for transmitting information, and reproducing apparatus, receiving apparatus and recording medium for the information, and transmission data thereof
View Patent ↗An output control (OPC) information is recorded on the magnetic tape 1 in conjunction with an MPEG stream. The OPC information is composed of two bits and is extracted from a reproduced signal by the output control circuit 9 and controls the digital interface (D. I/F) 7 and the switch circuit 11 . In case a first bit of the OPC information is “0”, the output control circuit 9 makes the D. I/F 7 enabled and permits the output of a digital signal. In a case of “1”, the output control circuit 9 prohibits to output the digital signal. Further, when the second bit of the OPC information is “0”, the output control circuit 9 turns the switch circuit 11 off, preventing the output of an analog component signal. In case its “1”, the output control circuit 9 permits the output of the analog component signal.
1. A method for transmitting information, which constitutes a transport stream that is multiplexed with at least video information by a transport packet, the method comprising:
receiving said transport stream;
controlling an analog output signal format of said video information in a receiving apparatus whether only an analog output signal of which resolution is limited to be less than original resolution of said video information is permitted to be outputted or an analog output signal of which resolution is not limited is permitted to be outputted;
receiving a flag in one bit for directly and selectively designating a signal format to be outputted;
transmitting said flag in one bit along with said video information.
2. A method for recording information recording medium, the method comprising:
receiving at least video information in conjunction with a flag in one bit for designating an analog signal format to be outputted from a reproducing apparatus; and
recording said video information and said flag on the recording medium,
wherein said flag directly and selectively designates an analog signal format outputted from said reproducing apparatus whether or not only an analog output signal of which resolution is limited to be less than original resolution of said video information is permitted to be outputted.