JP2008072645A - Program server device and program material managing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a program server device capable of switching a program material of a system being reproduced to a program material of other system at low cost without perform reediting. <P>SOLUTION: Program material data (a material A and a material B) of a plurality of systems recorded in a memory 112 are decoded by decoders 116 and 117 by the systems into program material signals of a base ban d, and when a switching indication is input by a switch 118, decoding output of the material A being output is switched to decoding output of the material B in a standby state. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a program server device and program material for selectively reproducing and outputting a baseband video / audio signal from a plurality of systems of video / audio materials (contents) used in a broadcast program, for example. It relates to a playback method.

  As is well known, for example, in a program transmission system for transmitting TV broadcast or radio broadcast program material, a video server that records the program material and reproduces the program material at an arbitrary timing is used.

  By the way, in such a system, a program material to be broadcast by a broadcast wave is edited by a video editing device such as a VTR (Video Tape Recorder), and the edited program material is transferred to a video server and recorded. Yes.

  However, in the above system, if noise or the like is found in the program material after recording on the video server, or if another program material is to be sandwiched in the middle, re-editing by the video editing device is necessary, which requires a lot of labor and time. It takes.

Conventionally, there has been considered a technique that includes an active video server and a standby video server, and switches program materials to be played back on each video server (for example, Patent Document 1).
JP 2001-351284 A

  However, the above-described technology requires equipment costs for preparing the active video server and the standby video server, and requires a large installation space.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a program server device and a program material reproduction method capable of switching a program material of a system being reproduced to another program material without re-editing at a low cost.

  In order to achieve the above object, a program server apparatus according to the present invention selectively selects one set of program material data from a plurality of program material data recorded on a recording medium and encoded as a baseband program material signal. In the program server device that reproduces and outputs the data, the decoding means provided for each system and for decoding the program material data read from the recording medium into the program material signal, and the decoded output of each system are fetched and used as a switching instruction input. Accordingly, switching means for switching the output system is provided.

  According to this configuration, each of a plurality of systems of program material data in the recording medium is decoded into a baseband program material signal for each system, and the program material signal being output in response to the switching instruction input is waiting for the program material Switch to the signal.

  Accordingly, since the playback material replacement function can be realized with a single device, it is possible to switch the program material of the system being reproduced to another program material without re-editing at low cost.

  As described above in detail, according to the present invention, it is possible to provide a program server device and a program material reproduction method capable of switching a program material of a system being reproduced to a program material of another system without re-editing at low cost. Can do.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 shows a configuration of a program material editing system according to an embodiment of the present invention, and 11 is a video server. Here, for simplicity of explanation, the number of input channels (systems) of the video server 11 is one channel, and the number of output channels is one channel.

  In this embodiment, an input device 12 such as a VTR or a DVD (Digital Versatile Disk) recorder is connected to an input channel of the video server 11.

  The video server 11 and the input device 12 are connected to a terminal device 14 via a control LAN (Local Area Network) 13.

  The terminal device 14 causes the input device 12 to send arbitrary video material and arbitrary audio material according to a control command by a user-specified input operation, and performs recording start control and reproduction start control for the video server 11. The control command includes timing information indicating when it is executed.

  FIG. 2 is a block diagram showing a schematic configuration of the video server 11.

  In the video server 11, a memory 112, an encoder 113, a LAN interface 114, a CPU 115, and decoders 116 and 117 are connected on the data bus 111. Here, the memory 112 stores a plurality of program material data (here, two systems of material A and material B) compressed and encoded by the encoder 113.

  The LAN interface 114 receives a control command from the terminal device 14 and a reproduction command from an automatic program transmission control device (not shown). This reproduction command includes a broadcast event time and a material ID to be transmitted.

  Based on the control command input to the LAN interface 114, the CPU 115 reads out a plurality of corresponding program material data from the memory 112 and inputs it to the decoders 116 and 117. The decoded outputs of the decoders 116 and 117 are selectively derived by the switch 118 in response to a switching instruction from the CPU 115.

Next, the processing operation in the above configuration will be described. FIG. 3 is a flowchart illustrating a control processing procedure of the terminal device 14.
When recording program material on the video server 11, the operator activates the terminal device 14. At this time, the video server 11 and the input device 12 are assumed to be in a power-on state.

  Then, the terminal device 14 displays a list of video / audio materials recorded on the input device 12 on the display 141 (step ST3a). In this state, when the operator selects and designates the video / audio material desired to be recorded on the video server 11 with the keyboard / mouse 142, the terminal device 14 proceeds from step ST3b to step ST3c, where the selection / designation is performed. A playback start control command is sent to the input device 12 on which the two types of material A and material B are recorded, and a recording start control command is sent to the video server 11.

  As a result, material A and material B are recorded in the memory 112 of the video server 11.

  The video server 11 reads the material A and the material B recorded in the memory 112 in accordance with a control command from the terminal device 14 or a reproduction command from the automatic program transmission control device, and inputs them to the corresponding decoders 116 and 117, respectively. Decoding outputs of the decoders 116 and 117 are input to the switch 118. Here, it is assumed that the material A is switched and derived by the switch 118.

  When the switching instruction signal is given by the terminal device 14, the CPU 115 switches the switch 118 from the decoded output of the material A to the decoded output of the material B. Then, as shown in FIG. 4, an on-air output in which the material B is replaced with the material A from the video server 11 is obtained.

As usage,
I want to record A material at once, but I want to insert B material instead of A on the way
I recorded A on the video server 11, but there was a scratch such as noise for a moment, and I would like to replace it with the normal part B that was recorded separately.
and so on.

  As described above, in the above-described embodiment, in the video server 11, a plurality of program material data (material A and material B) recorded in the memory 112 are converted into baseband program material signals by the decoders 116 and 117, respectively. Decoding is performed, and when the switching instruction is input by the switch 118, the decoding output of the material A being output is switched to the decoding output of the material B on standby.

  Accordingly, the playback material replacement function can be realized by one video server 11, so that the material A of the system being reproduced can be replaced with the material B of another system without re-editing at a low cost.

  The present invention is not limited to the above embodiment. For example, in the above-described embodiment, an example in which the two materials A and B are replaced has been described. However, the embodiment can be similarly implemented even when the number of program materials to be replaced is increased.

  In addition, the configuration of the program material editing system, the configuration of the video server, the replacement procedure of the program material, and the like can be implemented with various modifications without departing from the gist of the present invention.

1 is a block diagram showing a configuration of a program material editing system according to an embodiment of the present invention. The block diagram which shows the principal part structure of the video server shown in FIG. The flowchart which shows the control procedure of the terminal device shown in FIG. The figure shown in order to demonstrate the state by which the program material in reproduction | regeneration was replaced with another program material in the same embodiment.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 11 ... Video server, 12 ... Input device, 13 ... Control LAN, 14 ... Terminal device, 111 ... Data bus, 112 ... Memory, 113 ... Encoder, 114 ... LAN interface, 115 ... CPU, 116, 117 ... Decoder, 118 ... Switch, 141 ... display, 142 ... keyboard / mouse.

Claims (2)

In a program server apparatus that selectively reproduces and outputs a program material data of one system out of a plurality of program material data recorded and encoded in a recording medium into a baseband program material signal,
Decoding means provided for each system and decoding program material data read from the recording medium into a program material signal;
A program server apparatus comprising: a switching unit that captures a decoded output of each system and switches an output system in response to a switching instruction input. In a program material playback method for selectively playing back and outputting a program material data of one system among a plurality of program material data recorded and encoded in a recording medium to a baseband program material signal,
For each system, the program material data read from the recording medium is decoded into a program material signal,
A program material reproduction method characterized in that the decoded output of each system is taken in and the output system is switched in response to a switching instruction input.

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