JP2956079B2 - Display device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention is capable of displaying an input from an external device on a monitor and displaying a label display of the currently connected external device on a screen. The present invention relates to a display device capable of performing the following.

[Summary of the Invention] The present invention relates to a display device capable of displaying an input from an external device on a monitor and displaying a label of the external device on a screen. By automatically identifying the external device from the remote control signal or the bus signal and automatically performing the operation, the operation of writing the label name in the label display is facilitated.

2. Description of the Related Art Conventionally, display devices such as a television receiver and a monitor display device have an external device connection terminal such as a video input terminal, have an input switching function, and have a current input mode of CRT (cathode ray tube). ) Are known above. The display of the input mode of these display devices is generally a general display such as “video 1”, “video 2”,..., And what is actually connected to the video input terminal I didn't know.

In order to improve this point, recently, there has been a configuration in which the content displayed in the input mode can be changed. In these display devices, the input mode display of the conventional "video 1" or the like is displayed, for example, by "BS" (satellite broadcast tuner),
"LD" (laser disc), "VIDEO" (video equipment such as video cameras), "BETA" (beta VTR), "V
It can be changed to a video label display such as "HS" (VHS format VTR) or "8mmBIDEO" (8mm video).

FIG. 4 is an explanatory diagram of the above-described operation of changing the video label display, where 101 is a display screen displaying the input mode before the change, 102 is the display screen in the video label rewriting mode, and 103 is the video screen. It is a display apparatus screen which performs label display. Conventional video label rewriting has been performed in the following procedure.

(1) A video label rewrite mode is selected by a switch operation or the like. As a result, the screen 102 appears, and all the label names prepared in advance are displayed together with the label numbers indicating the names.

(2) The user searches for the label number of the label name to be rewritten and, for example, to enter "BETA" with the 10 key or the cursor key of the remote control device, inputs the label number 3 and then confirms the input of the label number Enter key to enter. As a result, “BET” is displayed in the input mode display instead of “Video 1” as shown in screen 103.
“A” is displayed.

As a technique related to the present invention, Japanese Patent Application Laid-Open No. Sho 60-4666
There is a conventional technique disclosed in Japanese Patent Application Laid-Open No. 9-90. This means that the device code of a remote control transmitter that remotely controls an external device such as a VTR connected to the television receiver is determined by the television receiver, and the output of the external device is determined by the input of the television receiver. This is a technology that automatically switches the input so that

[Problem to be Solved by the Invention] However, in the above-described display device in the related art, a user cannot select a video label unless the user knows the name of the device connected to the video input terminal of the display device. In addition, rewriting a video label requires the operation of a ten key, a cursor key, and an enter key, so that the operation may seem troublesome for a user, and it has been difficult to say that the operation is easy.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and has as its object to provide a display device that does not require a user to consider rewriting a video label and improves operability.

[Means for Solving the Problems] The configuration of the display device of the present invention for achieving the above object is capable of displaying an input mode, and can be set to a rewrite mode for rewriting characters in the input mode display. In a certain display device, an external input terminal for connecting an external device whose operation is controlled by a remote control signal or a bus signal including device identification information supplied from the outside, and the remote control signal or the bus signal in the rewrite mode. An identification unit for identifying the external device by identifying the device identification information included in the character, the character corresponding to the external device identified by the identification unit, from the characters corresponding to a plurality of external devices prepared in advance A control unit for selecting and determining and storing the selected mode in correspondence with the external input terminal; When displayed, and a character signal generator for generating a display signal for displaying the determined stored characters to the external input in response to the selection of the terminal on the screen, characterized in that it comprises.

[Operation] The present invention identifies an external device from a remote control signal or a bus signal for operating the external device connected to the external input terminal by using a device identification code or the like included in those signals, By selecting and determining the label name when displaying the input mode corresponding to the external device, storing it, and displaying characters on the screen corresponding to the selection of the external input terminal when displaying the input mode, The name is automatically written to improve operability.

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

FIG. 1 is a block diagram showing one embodiment of the present invention.
This embodiment is an example in which the present invention is applied to a television receiver having a monitor function by input switching. 1 is a television receiver, 2 is a VTR (video tape recorder) of a beta system which is one of the external devices, 3 is a BS tuner which is also one of the external devices, and 4 is for operating the television receiver 1 Reference numeral 5 denotes a remote control device for operating the VTR 2, and reference numeral 6 denotes a remote control device for the BS tuner 3.

Next, a schematic internal configuration of the television receiver 1 will be described. In FIG. 1, for the sake of simplicity, the audio signal system is omitted and only the video signal system is shown. Video input terminals 11 and 12 are external input terminals. The video input terminal 11 is connected to the VTR 2, and the video input terminal 12 is connected to the BS tuner 3. 13 is a television receiver (T
V) The TV tuner in 1. The inputs from the video input terminals 11 and 12 and the output of the TV tuner 13 are connected to the input side of an input switching circuit 14, respectively. Reference numeral 15 denotes a CRT (cathode ray tube), and reference numeral 16 denotes a video signal processing / output circuit that performs video signal processing such as Y / C separation and outputs a video signal to the CRT 15. 17 is a remote control device 4 for the television receiver 1 originally.
This is a remote control receiving unit for receiving a remote control signal (hereinafter abbreviated as a remote control signal) by infrared light or the like, but in the present embodiment, also receives signals from other remote control devices 5 and 6. Reference numeral 18 denotes a control unit, which is composed of, for example, a microcomputer or the like, and receives a remote control signal of the remote control device 4 received by the remote control receiving unit 17 to control channel selection of the TV tuner 13 and switching of the input switching circuit 14, It has a function of selecting a label rewriting mode and receiving a remote control signal from the remote control devices 5 and 6 to rewrite the video label. Reference numeral 19 denotes a character generating unit that generates a display character signal for displaying the video label determined by the control unit 18 on the screen of the CRT 15 in the input mode display. When the input switching circuit 14 receives a remote control signal from, for example, the remote control devices 5 and 6, the control unit 18 controls the video input terminal in advance.
The switching correspondence may be automatically controlled by registering the connection correspondence with 11, 12.

The control unit 18 includes an identification unit 18 as its function means.
a, a video label determination unit 18b, a storage unit 18c, and the like. The identification unit 18a has a function of identifying whether it is for itself or an external device based on a remote control signal from each of the remote control devices 4, 5, and 6 received by the remote control receiving unit 17. This identification is performed by looking at a device identification code (category code) included at the beginning of the remote control signal. If it is for itself (the television receiver 1), then the command content is determined and various operations such as channel selection of the television receiver 1 are controlled. In the operation, when the video label rewriting mode is instructed, the identification unit 18a
Then, when remote control signals are received from the other remote control devices 5 and 6, the category code similarly identified is transmitted to the video label determination unit 18b. The video label determination unit 18b
In the video label rewriting mode, it has a function of determining a video label corresponding to the category code and rewriting the video label in the storage unit 18c based on the result.

FIG. 2 is a flowchart showing an example of a rewriting procedure in the video label rewriting mode when the control unit 18 is constituted by a microcomputer. After entering the video label rewriting mode, first, the category code of the input remote control signal is displayed on the television receiver (T
V) Identify whether it indicates 1 or not. If the result of the identification is negative (No), it is determined whether or not the category code can be displayed. The determination is made based on, for example, whether or not the device indicated by the category code is a device corresponding to a video label prepared in advance. If the determination result is affirmative (Yes), the storage unit 18c is updated to rewrite the video label, and the processing ends. In the above, if the determination result as to whether or not the category code can be displayed is negative (No), the process ends immediately. Next, when the category code of the first remote control signal is affirmative (Yes), that is, when the category code of the input remote control signal is TV
If it indicates 1, the video label is rewritten using the 10 keys as in the conventional case, as shown in FIG. First, the input code that is input after the category code is 10
If it is a key code (Yes) and further has a remote control signal input of an ENTER key code and there is an input (Yes), a video label is selected by the number of the ten keys and the video label is rewritten. In the above, when the first input code is a code other than the 10 key (No) and when the input code of the next remote control signal is a code other than the enter key of the television receiver 1 (No), either In the case of, it ends immediately.

The operation and operation of the embodiment configured as described above will be described. FIG. 3 is a diagram for explaining the operation of this embodiment. Currently, AV
Most of the (audio / visual) equipment can be operated with the remote control device.
In addition, the format of the code transmitted from these remote control devices is usually provided with a category code in order to prevent interference and malfunction with other devices. This embodiment focuses on this point, and inputs a remote control signal of an external device connected to the video input terminals 11 and 12 of the television receiver 1 at the time of rewriting the video label. This allows one to automatically select the name of the video label. In FIG. 3, 15a, 15b,
Reference numerals 15c each denote a display screen of the CRT 15, and particularly, only a character display inserted into a normal screen. 15a shows an example of a display screen in an initial input mode, 15b shows an example of a display screen in a video label rewriting mode, and 15c shows an example of an input mode display screen after rewriting a video label. In this embodiment, video label rewriting is performed in the following procedure.

(1) The television receiver 1 is set to a video label rewriting mode by operating a switch of the remote controller 4 or the like.
As a result, a screen 15b appears, and all the label names prepared in advance are displayed together with the label numbers indicating the names. This display screen 15b is for the case where the label name is rewritten with the 10 key or the cursor key when the label name cannot be automatically determined by the category code.

(2) Next, the user handles any button of the remote controller 5 of the VTR 2 of the beta system connected to “video 1” (corresponding to the video input terminal 11). The television receiver 1 identifies the category code of the transmitted remote control signal, automatically selects and determines "BETA" corresponding to the code, and rewrites the category code. As a result, "BETA" is displayed in place of "Video 1" in the input mode display as shown on the screen 15c.

Similarly, the input mode display of "video 2" (corresponding to the video input terminal 12) can be rewritten to the label name of "BS". As described above, the present embodiment can rewrite a video label without causing the user to consider it and without operating the ten key or the like, thereby improving usability. As described above, the control unit of the present embodiment has an advantage that the control unit 18 that performs channel selection and the like can be shared, and if the control unit 18 is configured by a microcomputer, it can be implemented only by changing software. There is an advantage that can be realized without increasing the cost.

In the above embodiment, an example in which a video label is automatically rewritten using a remote control signal has been described. However, various AV devices such as the television receiver 1 are connected to a bus (common bus) and connected to the bus. In a bus system that can be organically controlled via a bus, the present invention can be similarly implemented by using the bus signal instead of the remote control signal. As described above, the present invention can be variously applied according to the gist and can take various embodiments.

[Effects of the Invention] As is clear from the above description, according to the display device of the present invention, the label name in the input mode display can be registered simply by operating the remote control device of the device desired to be used in the input mode. Because it can be used, usability is improved and settings are simplified.

[Brief description of the drawings]

FIG. 1 is a block diagram showing one embodiment of the present invention, FIG. 2 is a flowchart showing the procedure of a control unit of this embodiment, FIG. 3 is an explanatory diagram of the operation of this embodiment, and FIG. FIG. 11 is an explanatory diagram of an operation of changing a video label. DESCRIPTION OF SYMBOLS 1 ... TV receiver, 2 ... VTR, 3 ... BS tuner, 4,5,6 ... Remote control device, 11,12 ... Video input terminal, 15 ... CRT, 17 ... Remote control receiver, 18 control section, 18a identification section, 18b video label determination section, 18c storage section, 19 character generation section.

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) H04N 5/38-5/46

Claims (1)

(57) [Claims] 1. A display device capable of displaying an input mode and capable of setting a rewrite mode for rewriting characters in the input mode display, comprising: a remote control signal or a bus signal including device identification information supplied from outside; An external input terminal for connecting an external device whose operation is controlled by the identification unit that identifies the external device by identifying device identification information included in the remote control signal or the bus signal in the rewrite mode; A control unit that selects and determines a character corresponding to the external device identified by the identification unit from characters corresponding to a plurality of external devices prepared in advance, and stores the character corresponding to the external input terminal; When the mode is displayed, the determined and stored characters are displayed on the screen in accordance with the selection of the external input terminal. And a character signal generating unit for generating a display signal for displaying on the display device.