JPS6135077A - Cm tranmission device - Google Patents

Abstract

PURPOSE:To simplify unification of commercial CM by providing plural modules storing a video and sound signal for one CM share of a TV broadcast of one module share of nonvolatile memory so as to read the stored CM by a control means. CONSTITUTION:A switch 2 is connected to each of plural nonvolatile memories 1-n of a CM module 1 of a CM broadcast equipment and D/A converters 3, 4 are connected to each of the switches 2. Further, a read clock generator 5 and a control CPU4 are connected to a CM module 1 so as to connect mutually the CPU4 and a generator 5. Then one CM share of video and sound input of the TV broadcast is written in the memories 1-n of the CM module 1 from an A/D converter 12 under the control of a write clock generator 13. Further, a control input 15 and an output of the generator 13 are fed to a code generator 14, the content of the CM stored in the CM module 1 is read via the switch 2, the content is outputted so as to simplify the unification of the CM.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a CM sending device for sending (broadcasting) CMs (commercial messages) for television broadcasting.

(Prior Art) CM transmission (broadcasting) in television broadcasting plays an extremely important role in private commercial broadcasting along with program broadcasting. Private commercial broadcasting stations use their income to broadcast commercials (
It is only natural that it is extremely important that this service be broadcast reliably and reliably, since it depends on the radio frequency fees for broadcasting (transmission).

Recently, these private commercial broadcasting stations have been broadcasting commercials called dCNi banks (or CM files, CM unification transmission equipment).
delivery devices have become popular.

In a conventional CM sending device, CMs are filed on a videotape that is loaded onto a CD or VTR (video tape recorder) device, and for example, one day's worth of CMs are recorded in advance on one videotape in the order in which they are sent ( (edit) (this is 1
This is called honka (work).

This unified video tape (with commercials)
It is attached to a T-box device and starts/stops the VTR device at the required timing to send out (broadcast) commercials. Using this method, commercials can be broadcast without errors by previewing the combined tapes before broadcasting.
CM transmission), and the reliability of CM transmission has become significantly higher.

However, with this conventional CM bank, while reliability has increased by pre-singing CMs into one, it takes time to unify CMs, so it is difficult to accept CMs brought to the broadcasting station by sponsors. It is necessary to close the deadline at the start of the unification work. On the other hand, from Sbonzer's side, the C
There is a request to bring a commercial to the broadcast station just before the broadcast of M.

(Objective of the Invention) The object of the present invention is to create a commercial that satisfies the needs of such sponsors, simplifies the work of integrating commercials into one, and shortens the work time.
The purpose of the present invention is to provide a delivery device.

(Structure of the Invention) The CM sending device of the present invention includes a plurality of CM modules each storing video and audio signals for one CM of television broadcasting in one module's worth of nonvolatile memory, and and control means for reading and controlling each of the CMs stored in the module.

It is configured to include a switcher that sequentially switches and outputs the output of each CM module read by this control means, and a D/A conversion means that converts the output of this switcher into an analog signal and outputs it as a video and audio signal. .

(Example) Next, the present invention will be explained in detail with reference to the drawings. .

FIG. 1 is a block diagram of one embodiment of the present invention, and FIG. 2 is a block diagram of an embodiment of the present invention.
FIG. 2 is a block diagram when writing video signals and the like to the CM module 1 shown in the figure. In the figure, 1 is n CM modules, 2 is a switcher%3#4IfiD/A converter,
5ti read clock generator, 8 monitor TV, 9
This is an Fi control CPU.

Next, the CM module 1, which is a feature of the present invention, will be explained.

Commercials of 8 TV broadcasts, especially some commercials at stage breaks (junctions between programs)
Most commercials are 15 seconds in length, and occasionally 30 seconds in length.
There are seconds. Therefore, the length of an ICM can be considered to be 15 seconds, and for exceptional cases of 30 seconds or longer increments of 15 seconds, several 15 second lengths can be sent out in succession. Just think about it.

This CM module I#i has a memory made up of, for example, a single printed wiring board, and a connector is provided at the end of this board, and the system (CMi output device ) is connected. This CM module is equipped with a semiconductor memory (IC) manufactured by IK, and the unit length of the CM (for example, 1
Later on, the television signal (5 seconds) and the audio signal are stored in the form of digital signals.

It goes without saying that it is desirable to store (memorize) the signal amount as small as possible in this OcM mobile IK, so it goes without saying that it is desirable to store (memorize) the signal amount as low as possible. It is conceivable to sample at a frequency of 3 times (approximately 10.7 MH1), quantize it to 8 bits, and convert it into a digital signal. Therefore, the memory capacity in the CM module 1, for example, 10.7 Mbytes/sec x 15 Approximately 160 M in seconds
A part-time job is required.

Furthermore, the audio signal is a 48kHz sample, for example.

This is a 16-bit quantized two-channel channel, which can be inserted into a period corresponding to horizontal and/or vertical blanking of the video signal and multiplexed with the video signal. Actually C
It is also necessary for the CPU 9 to insert a code (called a material code, etc.) that identifies the type of M into the memory and check whether it is the specified commercial.
A separate code (hereinafter referred to as a material code) of M can be inserted at the start point of the video signal in the form of a header code or by using part of the vertical blanking period of the video signal.

This OcM module uses a reading device as shown in FIG.
It is conceivable that the stored C, M, and V-digitals could be distributed by taking them to broadcasting stations. For this reason, CM
It is desirable that the semiconductor memory mounted on the module be nonvolatile.

For example, a CM module equipped with 10 non-volatile 16-byte bubble memory devices is most suitable, but it is also possible to use EFROM or dynamic/static RAM.
It is also possible to use it as a battery backup to make it non-volatile. Since it is better to have a smaller memory capacity installed in this one CM-E-Zeal, it is also possible to reduce the bit rate by using an appropriate band compression technique. The CM module 1 is also equipped with a semiconductor memory for storing video signals and the like, as well as some logic circuits for controlling this memory by receiving external signals such as black and white signals.

Next, the operation of this CM module will be explained.

The digital video signal read out from this CM module/I/l is selected by the switcher 2, decoded by the D/A converter 3, generates blanking signals, synchronization signals, etc., and is inserted into the analog video of commuting to school. Signals and audio signals 7
This is the CM transmission output (7).

Further, the material code of the CM module 1 is sent to the control CPU 9 and checked there. This video/audio output cuff (main line)
usually requires offline monitoring, so
Provide a monitor output from switcher 2 and convert it to D/A
The converter 4 decodes the data and supplies it to a monitor television (TV) 8.

On the other hand, in order to match the CM sending output timing with the clock and synchronization signal of the broadcasting station, for example, the readout clock is read out based on the standard synchronization signal 6 of the broadcasting station (including the synchronization signal, power 2 - subcarrier signal, black burst signal, etc.). Generate signals (including blanking signals, synchronization signals, etc.) 5 and send them to C.
M module l.

Switcher 2. Send to D/A converters 3 and 4.

This entire CM sending system (device) is controlled by the control CPU 9, which is controlled by the control CPU of the program itself sending control device (AP8 device) of the broadcasting station, so that the correct CM is sent out at the correct time. controlled as follows. This control CPU 9 controls the broadcasting station's CM'lC
It may also be managed by connecting to the PU online. The number of CM modules used in this CM sending device varies depending on the circumstances of the broadcasting station, but is between 500 and 3000.

Next, the case of writing a CM to the CM module 1 will be explained with reference to FIG. This CM module 1 writing system (device) #i can be incorporated into the CM sending device, or can be placed in a broadcasting station as an independent device.
It can also be installed in an M (program) production example, such as a production house advertising agency.

First, when writing a CM to the CM module, the video signal 11 and audio signal 16 for the CM are each digitized by the A/D converter 12, and the audio signal is inserted into the horizontal and/or vertical blanking period of the video signal and multiplexed. be done. This video/audio digital signal is stored directly in the memory in the xCM module 1. On the other hand, the write clock generator 13 separates a synchronization signal etc. from the video signal input 11 and generates a clock signal based on this,
The A/D converter 12 sends the signal to the CM module 1° code generator 14. This code generator 14 receives a control input 15 from the outside (material information such as the type of CM, a start signal of a video and audio signal, etc.), generates a material code signal, and stores this in the CM module 3. Possible methods include multiplexing the video and audio digital signals and providing a separate dedicated memory.

(Effects of the Invention) As explained above, according to the present invention, the CM module...
This makes it easier to handle the CM files and shortens the time needed to unify the CM. When using this CM sending device, the CM
If we consider an operating mode in which CMs are brought to the broadcast station from advertising agencies in the form of modules, it becomes possible to bring new CM material to the broadcast station and broadcast it just before broadcasting.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of one embodiment of the present invention, and FIG. 2 is a block diagram of an embodiment of the present invention.
FIG. 2 is a block diagram of a device for transmitting video and audio signals to the CM module shown in the figure. In fig. 1...CM module, 2...Switcher, 3゜4...D/A converter, 5...
. . . Readout clock, generator, 8 . . . Monitor TV, 9 . . . Control CPU. 12... A/D comparator, 13...
Write code generator, 14... code generator, 15... control input.

Claims (1)

[Claims] A plurality of CM modules each storing video and audio signals for one CM of television broadcasting in one module's worth of non-volatile memory, a control means for reading and controlling the CMs stored in these CM modules, and A CM sending device including a switcher that sequentially switches and outputs the output of each CM module read by a control means, and a D/A converter that converts the output of the switcher into an analog signal and outputs it as a video and audio signal.