JPH11261907A - Av equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve operability by minimizing switching to an undesired input terminal even without setting validity/invalidity to each input terminal in advance by the user in the AV equipment where sequential switching of the input terminals is possible. SOLUTION: A counter 31 of the AV element measures the time of use of an input terminal used at present, and an input terminal state storage device 41 stores the result via a CPU 3. The CPU 3 selects input terminals in the order of the longer time of use stored in the input terminal state storage device 41 to switch the input terminals in the case of selecting any input terminal and informs the user of the name of the input terminal selected at present by means of an on-screen display device 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an AV device capable of sequentially switching input terminals.

[0002]

2. Description of the Related Art Conventionally, an A terminal capable of sequentially switching input terminals.
An input switching method in a V device is disclosed in Japanese Unexamined Patent Publication No. 7-1476.
No. 54 is known. FIG. 6 shows a configuration of a conventional input switching system.

In FIG. 6, there is provided a terminal data register 4 for holding data in which input terminal switching is enabled / disabled, and based on this data, the CPU 3 does not switch the input terminal whose switching is disabled. In this way, the switching selection unit 1 is controlled, the on-screen display unit 8 is controlled, and the video source display control is performed accordingly.

[0004]

In this method of sequentially switching the input terminals, the validity / invalidity of each input terminal must be set in advance in the terminal data register.

[0005]

In order to solve this problem, the present invention uses an input terminal state storage device to hold the last input terminal selected by the user or to hold the use time for each input terminal. The input terminal is switched based on information stored in the input terminal state storage device.

According to the present invention, there is no need for the user to set the validity / invalidity of the input terminal in advance, and the AV device can switch to a desired input terminal without selecting an unnecessary input terminal at the time of input switching. Can be provided.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention comprises a plurality of input terminals to which a video / audio source is input, and in which the input terminals can be sequentially selected, the frequency of use is high. AV equipment that can detect input terminals and switch in order from the most frequently used input terminal.
Even if the user does not set valid / invalid for each input terminal in advance,
Since selection of an invalid input terminal can be omitted and a desired input terminal can be selected, the number of key operations at this time can be minimized, and operability can be improved.

According to a second aspect of the present invention, there are provided a plurality of input terminals to which a video / audio source is inputted, a switch unit capable of switching each of the input terminals, and a name of an input terminal used last. And an input switching order storage unit that stores a switching order for the other input terminals, based on the contents stored in the input switching order storage unit.
2. The AV device according to claim 1, further comprising an input control unit for controlling said changeover switch unit and an on-screen display unit for displaying a currently selected input terminal. Without setting, the selection of the invalid input terminal can be omitted and the desired input terminal can be selected.
At this time, the number of key operations is minimized, and operability can be improved.

According to a third aspect of the present invention, there are provided a plurality of input terminals to which a video / audio source is input, a switch unit capable of switching each of the input terminals, and a switch for each input terminal. A use time storage unit for holding a use time, an input control unit for sequentially switching inputs from longest use terminals stored in the use time storage unit, and an on-screen for displaying a currently selected input terminal An AV device according to claim 1, further comprising a display unit, wherein in addition to the effects of the invention according to claim 2, erroneous selection at the time of the next input selection caused by erroneous selection of an input terminal by a user is prevented. Can be.

According to a fourth aspect of the present invention, there are provided a plurality of input terminals to which a video / audio source is input, a changeover switch unit capable of switching each of the input terminals, and a switch for each input terminal. A use time storage unit for holding a use time, an input control unit for sequentially switching inputs from longest use terminals stored in the use time storage unit, and an on-screen for displaying a currently selected input terminal 4. The AV device according to claim 1, further comprising a display unit and a use time initialization unit for returning use times of all input terminals of said use time storage unit to an initial state. In addition, even if the frequency of use for each input terminal changes significantly due to a change in the connection of the external device,
By initializing the use time for each input terminal, it is possible to immediately perform input selection again in the order of use time.

(Embodiment 1) An embodiment of the invention described in claims 1 and 2 of the present invention will be described with reference to FIG.
This will be described with reference to FIG.

FIG. 1 shows a block diagram of an AV device according to Embodiment 1 of the present invention. In FIG. 1, an input switch 1 selects a desired input from video / audio input terminals 11 to 16 and outputs it to a terminal 17. The video / audio processing unit 2 processes the input video / audio signal,
Output to the GB processor 7. The RGB processor 7
The video output of the video / audio processing unit 2 and the output video signal of the on-screen display unit 8 are converted into R, G, B and output to the CRT 6. The input switching order storage unit 4 has the structure shown in FIG. 2, and is a memory in which the last used input terminal name is always held at the head of the register. The remote controller 10 includes a key for operating the AV device to be controlled such as a power key (to put the AV device to be controlled in a standby state), a channel switching key, a volume setting key, and the like, and a video input switching key. Each time the input switch key is pressed, the video input is sequentially selected. The remote control receiver 9 is provided with the remote controller 1
A signal issued from 0 is received and transmitted to the CPU 3 to transmit a user operation. The CPU 3 controls the input switch 1 in the video input order registered in the input switching order storage unit 4 every time the video input switching key of the remote controller 10 is pressed, switches the input, and controls the on-screen display unit 8. , To display the current input terminal name.

FIG. 2 shows a tuner, video inputs 1 to 4, and a MUSE input terminal as input terminals of the input switch 1. The input terminals are switched by a video input switch key of the remote controller 10. The operation in the case where the selection can be sequentially performed by the operation will be described.

In the initial state, the contents of the input switching order storage section 4 are video inputs 1, 2, 3, 4, M as shown in FIG.
USE order, and the currently selected input is a tuner. Now, assume that the user is going to select video input 3. When the user presses the video input switching key of the remote control 10, the video input 1 is selected, and the user presses the video input switching key of the remote control 10 until the video input 3 is selected. Video input 3
Is selected, the user views the video / audio from the video input 3, and when the viewing is completed, the remote control 10
Press the power key (standby key) or the channel switch key. Using the operation of the remote controller 10 as a trigger,
The CPU 3 moves as shown in FIG. 2B so that the video input (the video input 3 in this case) selected in the order of the video input names registered in the input switching order storage unit 4 comes first.

At the next opportunity, when the user tries to select the video input 3 and presses the video input switching key of the remote controller 10, the CPU 3 causes the input switching order storage section 4 in the order of FIG. Is read, and the input switch 1 is controlled to select the video input 3.

As described above, the video input switching order registered in the input switching order storage unit 4 is arranged in order from the most frequently used one. When the video input switching key of the remote controller 10 is pressed, the video input switching is registered at the top. Since the input video input is selected first, it is possible for the user to switch to a desired input without selecting an unnecessary video input, thereby improving operability.

(Embodiment 2) According to Embodiment 1 of the present invention, even when an undesired video input is selected due to a user's mistake and a channel switching key or a power key (standby key) is pressed, the final video input is not performed. Since the viewing video input is stored in the input switching order storage unit, there is a disadvantage that the video input which is erroneously selected is selected first at the next video input switching.

FIG. 3 is a block diagram of an AV device according to the second embodiment of the present invention. In FIG. 3, portions denoted by the same reference numerals are the same as those in FIG.

FIG. 4 shows the configuration of the viewing time storage section 41.
The contents are input terminal names and viewing integrated times having a one-to-one correspondence with them. The counter 31 measures the viewing time of the video input selected by the user. CPU3
The integrated viewing time of each video input stored in the viewing time storage unit 41 is registered, and the input switch 1 and the on-screen display unit 8 are controlled so as to switch the video input in order from the one with the longest viewing time.

Hereinafter, the operation when the user is going to select the video input 3 will be described. When the video input 3 is selected by the user operating the video input switching key of the remote control 10, the CPU 3 resets the counter 31 for measuring the viewing time. When the viewing is completed, the user presses a power key (standby key), a channel switching key, or a video input switching key of the remote controller 10 to turn off the power, watch a broadcast from the tuner, or watch another video input. Begin to.

With the operation of the remote controller 10 as a trigger, the CPU 3 reads out the viewing time of the video input terminal which has been viewed up to now from the counter 31, and stores the viewing time in the viewing time storage unit 4.
Is added to the viewing time of the corresponding input terminal, and the result is written back to the viewing time storage unit 41.

At the next opportunity, when the user presses the video input switching key of the remote controller 10 to select the video input 3, the CPU 3 selects the video input in the viewing time storage section 41 in descending order of the viewing integration time. To control the input switch 1 and the on-screen display unit 8.

As a result, since the viewing integration time of the previous video input 3 is longer than that of the other input terminals, the video input 3 is immediately selected.

While the video input switching operation is repeated, the viewing time storage unit 41 adds the viewing integration time in accordance with the usage status of the video input by the user.
The usage tendency of the user's video input can be detected.

Since video input switching is performed in order from the most frequently used video input terminal, it is possible to omit a key operation of the remote controller which is unnecessary for the user, thereby improving operability. Even if an erroneous video input is selected, the viewing time of the erroneous video input is short, so that when switching the next video input, the video input with the longest viewing time is selected and the erroneous selection of the video input is not performed. The effect can be minimized.

(Embodiment 3) According to Embodiment 2 of the present invention, even if a connection change of an external device occurs, the integrated viewing time remains the same as before, so that the video input of the connection after the change of connection is changed. Until the viewing time exceeds the viewing time of the previous connection, unnecessary remote control key operations are required until the video input desired by the user is reached.

The third embodiment of the present invention provides a method for solving the above-mentioned problem. FIG. 5 shows a block diagram of the third embodiment. In FIG. 5, portions denoted by the same reference numerals are the same as those in FIG. 3, and the description thereof will be omitted.
The integrated time initialization unit 51 has a function of initializing the integrated viewing time of all video inputs in the viewing time storage unit 41 to zero. C
The PU 3 operates in the viewing time storage unit 41 relating to the video switching in the same manner as that described in the second embodiment. However, when the PU 3 receives the notification that the connection of the external device has been changed by the user, Integration time initialization unit 51
A command to initialize the integrated viewing time of all video inputs in the viewing time storage unit 41 is issued.

Thus, the integrated viewing time of all the video inputs in the viewing time storage unit 41 becomes 0, and the preparation for newly detecting the usage tendency of each video input by the user is completed. In addition, instead of the initialization of the integration time using the integration time initialization unit,
For each video input, the integrated viewing time of the viewing time storage unit 41 is read, and the difference between the read integration time and the integrated time stored in the viewing time storage unit 41 is again calculated as the integrated time of the viewing time storage unit 41. Can be initialized as described above.

[0029]

According to the present invention, the selection of the invalid input terminal can be omitted and the desired input terminal can be selected without the user setting the validity / invalidity for each input terminal in advance. The required number of key operations is minimized, and operability can be improved. In addition, it is possible to prevent erroneous selection at the time of the next input selection caused by erroneous selection of the input terminal by the user, and even if the use frequency of each input terminal changes significantly due to the change of the connection of the external device. By initializing the use time for each input terminal, it is possible to immediately perform input selection again in the order of use time.

[Brief description of the drawings]

FIG. 1 is a block diagram of a first embodiment of the present invention;

FIG. 2 is an explanatory diagram of an operation according to the first embodiment of the present invention;

FIG. 3 is a block diagram of a second embodiment of the present invention;

FIG. 4 is a structural diagram of an integrated viewing time storage unit according to a second embodiment of the present invention.

FIG. 5 is a block diagram of a third embodiment of the present invention.

FIG. 6 is a block diagram of a conventional input switching system.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Input switch 2 Video / audio processing part 3 CPU 4 Input switching order storage part 5 Speaker 6 CRT 7 RGB processor 8 On-screen display part 9 Remote control receiving part 10 Remote control 11 Tuner input terminal 12 Video 1 input terminal 13 Video 2 input terminal 14 Video 3 input terminal 15 Video 4 input terminal 16 MUSE input terminal 17 Input switch output terminal 31 Counter 41 Viewing time storage unit 51 Integrated time initialization unit

Claims (4)

[Claims] In a configuration provided with a plurality of input terminals to which a video / audio source is input and in which the input terminals can be selected in order, an input terminal having a high use frequency is detected, and an input terminal having a high use frequency is detected in order. AV equipment that can be switched. 2. A plurality of input terminals to which a video / audio source is input, a changeover switch unit capable of switching each of the input terminals, a name of an input terminal used last and other input terminals. An input switching order storage unit for storing a switching order, an input control unit for controlling the switching switch unit based on the contents stored in the input switching order storage unit, and an on-screen for displaying a currently selected input terminal 2. A according to claim 1, further comprising a display unit.
V equipment. 3. A plurality of input terminals to which a video / audio source is input, a changeover switch unit capable of switching each of the input terminals, and a use time for holding the use time for each input terminal A storage unit, an input control unit for sequentially switching inputs from input terminals having a long usage time stored in the usage time storage unit, and an on-screen display unit for displaying a currently selected input terminal. Item 4. The AV device according to Item 1. 4. A plurality of input terminals to which a video / audio source is input, a changeover switch unit capable of switching each of the input terminals, and a use time for holding the use time for each input terminal A storage unit, an input control unit for sequentially switching inputs from input terminals having a long use time stored in the use time storage unit, an on-screen display unit for displaying a currently selected input terminal, and the use time 2. The AV device according to claim 1, further comprising a use time initialization unit for returning use times of all input terminals of the storage unit to an initial state.