JPH0353635B2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention allows various information of audio equipment to be stored on a CRT,
This invention relates to a device that centrally displays images on an image display device such as an LCD dot matrix.

Audio equipment such as radio receivers, tape decks, TVs, and VTRs each have independent displays, but if these are placed centrally in a vehicle, etc., the displays on each display will be mixed together, making it difficult to see.

The present invention attempts to centralize the display of a plurality of audio devices using an image display device such as a CRT.

The present invention relates to a central display device that is connected to each controller that controls a plurality of audio devices, and centrally displays various information regarding the audio devices in use on an image display device such as a CRT. It controls the operation of the corresponding audio equipment according to instructions from the ROM that stores the fixed pattern of each still image, the video RAM that stores the still image, and the key matrix, and synchronizes with a predetermined timing signal. a controller that sends out variable information in accordance with the operation of the audio equipment; a fixed pattern corresponding to the audio equipment currently in use is read from the ROM and stored in the video RAM; The video is edited by editing variable information sent in synchronization with the signal.
It is characterized by a microprocessor that controls the image display device to display a still image related to the audio equipment currently in use while sequentially writing into the video RAM and repeatedly reading out the contents of the video RAM. This will be explained in detail with reference to examples.

Figure 1 is a block diagram of an audio system to which the present invention is applied, in which 1 is a CRT (cathode ray tube) that centrally displays tape information, etc., 2 is the horizontal and vertical synchronizing signals H-SYNC, V-SYNC, and video signals of the CRT 1. 3 is a video RAM (V-RAM) for storing still images; 4 is a CRT controller that controls the
is V-RAM3 divided into three primary colors: red, blue, and green.
a parallel-to-serial (P→S) converter that converts the parallel signal from the CRT into a serial signal for input to the CRT1, 5
7 is a multiplexer (MPX) that switches access from the microprocessor (MPU) 6 and CRT controller 2, and 7 is a parallel input/output port (i/
o), 9 is a read-only memory (ROM) that stores fixed patterns of still images such as character patterns and cassette figures, and software for control; 10 is a cassette deck; 11 is an equalizer amplifier; 12 is a power amplifier. , 13 is a speaker, and 14 is a key matrix for giving various instructions to the deck controller 8. Both 6 and 8 use microprocessors (computers), and the controller 8 exclusively controls the deck 10. MPU6 takes in information from deck 10,
Edit that information, store it in V-RAM3, and then
Performs control, etc. to display images on 1.

In this example, the only audio equipment is the deck 10, and the main parts thereof are shown in FIG. 2. From the deck controller 8 to the parallel I/O 7, the timings O ₄ to O ₇ and data O ₀ to O 7 shown in FIG.
O ₃ sent. This data O ₀ to _{O 3} is variable information such as tape counter and running direction, and this and ROM9
The fixed pattern 9a from 9 is synthesized on the V-RAM 3 and displayed on the CRT 1.

4A and 4B are flowcharts showing display processing in tape mode, and FIG. 4C is a flowchart showing division processing. FIG. 5 is an example of a tape mode screen displayed on the CRT 1. In the same figure,
21 is a running direction inverter (red), 22 is its background (green), 23 is a tape (white), 24 is a running indicator (blue) that moves in the actual tape running direction,
25 is a 3-digit tape counter indicator, 26
is the tape selector displayed in a magenta frame,
27 is a Dolby (registered trademark) indicator also displayed within a magenta frame, 28 is a cue indicator, 29 is a recording indicator displayed in red, and 30 is five switch patterns. Various functional patterns are displayed within the frame of the switch pattern 30, and one switch is used for multiple functions according to these patterns. The switch is, for example, a transparent electrode switch formed on the surface of the CRT 1. The fixed pattern in FIG. 4A is the fixed pattern 9a read out from the ROM 9, of which the background 22 and the like in FIG. 5 are part.

By centrally displaying various information about the tape deck on the CRT1 as described above, it is easy to diversify the display, but above all, when multiple types of audio equipment are connected, various information about the equipment currently in use is displayed on the CRT1. This eliminates the need for each device to have its own display, and has the advantage that it can be immediately determined whether the device displayed on the CRT 1 is currently in use. Also, CRT1 can be used for TV and
It can also be used as a VTR image display means.

As described above, according to the present invention, fixed patterns related to audio equipment and various types of variable information associated with the operation of audio equipment can be switched or concentrated on an image display device such as a CRT according to the audio equipment currently in use. This has the advantage of improving the display system of a system in which multiple audio devices are centrally arranged.

[Brief explanation of drawings]

Fig. 1 is a block diagram of the system to which the present invention is applied, Fig. 2 is a block diagram of the main parts thereof, Fig. 3 is a time chart of data exchange with the deck controller, and Figs. 4 and 5 are the main parts of the system. 2 is a flowchart and a screen explanatory diagram showing an embodiment of the invention. FIG. In the figure, 1 is CRT (image display device), 3 is video
RAM, 6 a microprocessor, 10 a cassette deck (audio equipment), and 9 a ROM storing fixed patterns.

Claims (1)

[Claims] 1 A central display device that is connected to each controller that controls a plurality of audio devices and centrally displays various information regarding the audio devices in use on an image display device such as a CRT, which displays each still image related to the plurality of audio devices. A ROM that stores fixed patterns and a video that stores the still images.
RAM, a controller that controls the operation of the corresponding audio device according to instructions from the key matrix, and sends out variable information associated with the operation of the audio device in synchronization with a predetermined timing signal; A fixed pattern corresponding to the audio device is read from the ROM and stored in the video RAM, and variable information sent from the controller of the audio device currently in use in synchronization with a timing signal is edited and sequentially written into the video RAM. , a microprocessor that controls the image display device to display a still image related to the audio equipment currently in use while repeatedly reading out the contents of the video RAM.