JPS62130032A - Broadcast program transmission and reception equipment - Google Patents

Abstract

PURPOSE:To prevent the function stop of a terminal equipment and to attain the mixing state of different kind of modes by designing the titled equipment that the mode according to a data signal is set when the data is sent and a preset mode is set when no data signal is sent. CONSTITUTION:A CPU 10 discriminates whether or not a data signal relating to a charging unit is sent from a broadcast center after a timer is started and is restored to the state awaiting the data signal before a prescribed time does not elapse by using the timer so as to discriminate whether or not the prescribed time elapses. When the prescribed time elapses, the CPU reads a charging unit set by a dip switch 12 as a data to apply charging processing. When the data signal is sent from the broadcast center, the charging data is read from the signal to apply the charging processing. The charging is processed by calculating a time possible for viewing depending on the data in the unit of charging and kinds of coins detected by a coin selector 15 and turning off a transistor 19 and a relay 20 after the time elapses.

Description

DETAILED DESCRIPTION OF THE INVENTION (1) Industrial Application Field The present invention relates to a transmitting device that transmits a broadcast program, a receiving device that receives a broadcast program transmitted from the transmitting device, and a transmitting device. This article describes a broadcast program transmitting and receiving device consisting of a transmission line connecting receiving devices.

(2) Prior Art As such a broadcast program transmitting/receiving device, for example, in a hotel or the like, there is a third type in which a transmitting device is provided at a broadcasting center, a terminal serving as a receiving device is provided in each guest room, and the two are connected by a coaxial cable. There is a broadcasting system shown in the figure. In such broadcasting systems in hotels, etc., paid and 7! ! Broadcasting data that informs whether a TV program is being broadcast on a certain channel, billing data that informs each paid channel of the time that can be viewed for a predetermined amount of money, etc., are sent out. In addition, from the control device placed in the front desk 2, data is sent to each guest room to determine whether or not to view the FJ 4TV program, data to start and stop guidance broadcasts such as calls, etc. are connected to the terminals 31 to 3o. In some cases, data for turning on/off the power of the TV receiver that has been set is sent. Each terminal 3
1 to 3o receive the data of 9 and display it on display lamps, etc., and also allow or prohibit each channel of the TV receiver, turn on the power of the TV receiver, etc.
Sometimes I turn it off.

(3) Problems to be solved by the invention In the transmitting/receiving device, even if various types of data to be transmitted are received within the terminal, the predetermined reception Since the terminals 31 to 3o are set to this mode, if a data signal is not supplied due to a temporary communication in the transmission line or a failure in the transmitter, the terminals 31 to 3o will stop functioning and return to normal operation. This made the system unreliable as a broadcast program transmitting/receiving device.

(l) Means for Solving the Problems The present invention has been made in view of the above points, and the transmitting device sets the receiving mode of the receiving device in addition to the broadcast program information, and sends out a data signal. When the receiving device receives data 1 huff or 1 m, it switches to the 7 tote determined by that data signal, and no data signal is transmitted. is configured to switch to a preset mode within the receiver 18 device.

(5) Effect In this configuration, when a data signal is transmitted, the mode is set to 1 for that data, and when no data signal is transmitted, the mode is set in advance, so the terminal when no data signal is supplied In addition to preventing malfunctions, if you set different modes for each receiving device in advance, you can create a state in which each receiving device has different receiving modes or a mixture of them by stopping the transmission of data signals. It works like this.

(6) Examples Hereinafter, the present invention will be explained based on the drawings.

FIG. 1 is a block diagram showing an embodiment of a broadcast program transmitting and receiving apparatus according to the present invention.

FIG. 1 shows the terminals 31-311 shown in FIG. In FIG. 1, the input terminal 5 is supplied with a TVts signal, an FM audio signal, and a data signal in a frequency-multiplexed state. The TV signal is used to transmit various subjects and free TV broadcast programs, and the FM audio signal is used for guide broadcasts.

Tuners 7 and 8 demodulate these signals. Data 1 word is F S [((Frequency
S is supplied with the old "tKeying" signal, etc.
Demodulation and serial-to-parallel conversion are performed by the demosimulator 6. The output terminal of this demosimulator 6 is CP
[J Connected to data bus DB of 10. CPI
A rotary switch 11 and a 7-tube switch 12 are also connected to the data bus DB of J10. The rotary switch 11 is used to create an ID code to identify the terminal as a pond terminal. Further, the DIP switch 12 determines the charge unit, that is, the number of minutes a pay TV broadcast program can be viewed per 100 yen.

C: P tJ l O's human output boat I10 is connected via a converter 18 to a coin selector 15 and an LED 16jj channel selection switch 17 provided in the terminal. Coin selector 15 is CoinHox (
Is the coin inserted in the box (not shown) a 100 yen coin?5
Inform Araka of CPjJ10ζ with a 00 yen coin. L
E D l 6 is connected to the broadcast center l via input terminal 5.
The channel currently being broadcast is displayed according to the data signal supplied from the TV. The channel selection switch 17 is a switch for selecting a channel, and is linked to the channel selection operation on the tuner 7.

The output port O of the CPU IO is connected to the base of a transistor 19, and by turning on and off this transistor 19, the Reno-20 is controlled on and off, and the TV receiver (In<not shown) connected to the outlet 21 is connected to the base of the transistor 19.
I am trying to turn the power on and off. This CPU10
The on/off control of the transistor lr] and the relay 20 is performed based on the data signal supplied from the broadcasting center 1 via the input terminal 5 or the charging unit set by the decoder switch 12, and the amount of coins detected by the coin selector 15. One day is added as a result of the billing process shown in FIG. 2 while referring to each type.

FIG. 2 is a flowchart showing a part of the operation of CF'UlO, which is started when it is necessary to control the on/off of the TV receiver connected to the outlet 21j by the CPU10. When started, the timer is first set to start. This timer is a timer for determining whether or not a data signal related to the billing unit is supplied from the broadcasting center 1 within a predetermined time. After starting the timer, it is determined whether a data signal regarding the charging unit has been sent from the broadcasting center 1. If it is not sent, it is determined by the above-mentioned timer whether the predetermined time has elapsed or not, and if the predetermined time has not elapsed yet, the process returns to the state of waiting for a data signal related to the billing unit to be sent from the broadcasting center I. If the predetermined time has elapsed, the charging unit set by the DIP switch 12 is read as data, the charging process described later is performed, and the process ends. When a data signal regarding a charging unit is sent from the broadcasting center l, the data on the charging unit is read from the data signal, charging processing is performed, and the process ends.

In the billing process, the viewing time is calculated from the billing level data obtained as described above and the type of coin detected by the coin selector 15, and after this time has elapsed, the transistor 19 and the relay 20 This is done by turning off the .

In the embodiments described above, the case where the receiving mode of the receiving device is billing processing has been explained, but the receiving mode of the receiving device may also include, for example, processing to display the channels being broadcast, or what to do in an emergency. The present invention can also be applied to processes such as determining whether a channel is to be broadcast.

(7) Effects of the Invention As explained above, in the present invention, the transmitting device sends out a data signal for setting the reception mode of the receiving device in addition to the broadcast program, and the receiving device receives the transmitted data signal. When the data signal is transmitted, it switches to the mode determined by the data signal, and when the data signal is not transmitted, it switches to the mode preset inside the receiving device, so when the data signal is transmitted, the mode is set in advance. When the data signal is not transmitted, the mode is set according to the preset mode, so it is possible to prevent the terminal from stopping functioning if the data signal is not supplied. By setting , it becomes possible to create a state in which different reception modes coexist in each receiving device by stopping the transmission of data signals.

[Brief Description of the Drawings] Fig. 1 is a block diagram showing an embodiment of a broadcast program transmitting/receiving device according to the present invention, and Fig. 2 is a block diagram showing an embodiment of a broadcast program transmitting/receiving device according to the present invention.
FIG. 3 is a block diagram showing a conventional broadcast program transmitting/receiving device. l...Broadcast center 2...Front 31-3n...Terminal 5...Input terminal 6...Demosimulator IO...CPU 12...Dip switch 15...Coin selector 19... Transistor 20 competition / φ relay 21...Outlet patent applicant NEC Home Electronics Co., Ltd. NEC Corporation

Claims (1)

[Claims] In a broadcast program transmitting/receiving device consisting of a transmitting device that transmits a broadcast program, a receiving device that receives the broadcast program transmitted from the transmitting device, and a transmission line connecting the transmitting device and the receiving device, the transmitting device transmits the broadcast program as well as the broadcast program. A data signal that sets the receiving mode of the receiving device is sent to the receiving device, and when the data signal is transmitted, the receiving device switches to the mode determined by the data signal, and when the data signal is not transmitted, the receiving device internally switches to the mode specified by the data signal. A broadcast program transmitting/receiving device characterized by switching to a preset mode at .