JPH0152954B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to electronic equipment that displays information other than broadcasting.

[Explanation of conventional technology and its problems]

Recently, a program reservation TV was devised, which stores the time and channel in a semiconductor, compares it with the internal clock circuit, and automatically changes the channel, and then manually checks to see if there are any other reservations. The channel continues until another channel is specified.

However, there was no electronic device that could automatically switch to an empty channel and display the information desired by the operator entered from the keyboard at a predetermined time, so such a convenient electronic device that can be used for multiple purposes has not been available. equipment was desired.

[Means and effects for solving the problems] The present invention has been made in view of the above-mentioned prior art, and includes a receiving means for receiving a plurality of broadcasts, information to be displayed, and instruction information for instructing display of the information. a keyboard for inputting information, a storage means for storing information input by the keyboard, a selection means for selecting a broadcast received by the reception means or information to be displayed in the storage means; and a supply means for selecting and selecting the information to be displayed broadcasted by the selection means and supplying the selected information to the display means in response to the instruction information inputted from the keyboard. The purpose of the present invention is to provide a convenient electronic device that can utilize the display functions of the device for multiple purposes.

The present invention provides an electronic device that is capable of receiving and displaying television broadcasts and displaying information other than television broadcasts.

〔Example〕

FIG. 1 is a block diagram showing an embodiment of an electronic device according to the present invention. C1, C2, C3, C in the diagram
4 is a channel selection button, and to simplify the explanation, the number of channels is 4, and the second
Set the channel as an empty channel. Also, the buttons will be push-button switches. Also, F1, F2,
F3 and F4 are set priority type flip-flops. For example, when button C1 is pressed, the LOGICAL1 signal (logical 1) shown in the figure is applied to the set side (S) of flip-flop F1, setting flip-flop F1. OR1 is an OR gate that calculates the logical sum of buttons C1 to C4, and gives a reset signal to the reset side (R) of flip-flops F1 to F4 no matter which button is pressed.However, as mentioned above, since set priority is given, only flip-flop F1 is activated. Assume that the output continues to output 1. Note that when C1 to C4, etc. are not pressed, it is assumed that logical zero is added to the set side.

On the other hand, KEY is an input device consisting of a group of numeric character keys, etc., and at least an input section for inputting the scheduled time.
It consists of KEY1 and an input section KEY2 for inputting schedule contents, and the pressed keys are binary encoded and stored in the memory in the central processing unit.

Further, CP is a time generation unit consisting of a crystal oscillator, a counter, etc., which converts the current time into binary code and sends it to the central processing unit.

The CPU is a central processing unit that compares the scheduled time with the actual time, and if they match, sends the scheduled contents to the interface IF and outputs the signal OSO.
A block diagram of the main parts of this central processing unit CPU is shown in FIG.

Fig. 2 is a block diagram of the CPU shown in Fig. 1, where R1 indicates information other than the time from the input device KEY2,
For example, R2 is a first memory that stores schedule contents in binary code, R2 is a second memory that stores time information from input device KEY1, and R3 sequentially stores current time information from time generator CP. The third thing to do
, CON is a matching circuit consisting of an exclusive-or flip-flop, etc., which constantly compares the contents of the above-mentioned memories R2 and R3, and generates a specific pulse when they match; OS receives a specific pulse from the above-mentioned matching circuit CON; G5, a one-shot circuit that outputs a logical 1 for a certain period of time, is an AND gate that passes the contents of the memory R1 and leads it to the interface IF when OSO=1. The output OSO from the CPU is
This is a signal line that outputs logical 1 for a certain period of time when the time input by KEY and the time sent from time generator CP match.
By applying this to G2, G3, and G4, the output of each flip-flop is inhibited when OSO = 1, and logical 1 is ORed to the G2 output via diode D1, so that the output of a specific channel (channel 2 in the figure) is disabled for a certain period of time. I would have given instructions.

Other outputs from the CPU are information to be displayed on a cathode ray tube or the like, and this is led to the interface circuit IF.

The IF is an interface circuit that includes an RF modulator and the like, and outputs the output from the central processing unit CPU as a signal synchronized with an empty channel and is applied to the television receiver from, for example, an antenna terminal.

TV is a television device, which switches to a selected channel by a channel selection signal applied to an input section TV1, and shows a signal led from an antenna of the television device on its display section CRT.

Next, add an explanation of the operation.

Now, if □3 □hour □ka □i □gi are input from the keyboard, □3 is stored in memory R2, and □ka □i □gi is converted into binary code and stored in memory R1.

On the other hand, it is assumed that the user is watching TV channel 1 by pressing the button C1, and when the time information from the time generator CP reaches 3 o'clock, the coincidence circuit CON
If a match is found and a logical 1 is emitted for 1 minute on the one-shot OS, then the AND gate G1
is closed, and the diode D1 connected to the G2 output prompts the TV set to channel 2. At the same time, the AND gate G5 in Figure 2 opens, and the code corresponding to the key in the memory R1 is sent to the TV set via the interface IF. It is displayed on a TV's cathode ray tube for one minute.

Moreover, since OSO=0 after one minute, AND gate G1 is opened and channel 1 is restored.

〔Effect of the invention〕

As explained above, by using the electronic device of the present invention, it is possible to receive and display television broadcasting, and it is also possible to display and output information other than television broadcasting that the operator desires, making it possible to utilize the display function of the television. It can be used for multiple purposes.

In addition, since power consumption can be extremely reduced except for TV equipment and interface IF, TV
The main switch can be driven even when the main switch is OFF, and it is easy to imagine a configuration in which the main switch is turned on by the OSO signal.

In addition, although only the cathode ray tube was explained in the present invention,
It is easy to infer that the TV speakers are used to emit specific sounds.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of an electronic device according to the present invention, FIG. 2 is a block diagram of the central processing unit CPU shown in FIG. 1, R1...first memory, G5...and gate, OS
...One shot.

Claims (1)

[Scope of Claims] 1. Receiving means for receiving a plurality of broadcasts; Display means capable of displaying the broadcasts received by the receiving means; Information to be displayed and a time for instructing the time at which the information should be displayed. a keyboard for inputting information; a storage means for storing the information inputted by the keyboard; a clock means for supplying time information; and a time information set for instructing the time at which the information stored in the storage means should be displayed. a setting means for comparing the time information supplied from the timekeeping means with the time information set in the setting means; and a comparison means for comparing the time information supplied from the timekeeping means with the time information set in the setting means; and a comparison means for comparing the time information from the timekeeping means and the setting means. When the time information set at An electronic device comprising: switching means for switching to a broadcast received by the receiving means; and supply means for supplying the information or broadcast switched by the switching means to the display means.