JPS61105999A - Acoustic device - Google Patents

Abstract

PURPOSE:To eliminate a wrong recognition from users by providing a common operating unit, an audio unit and a display unit for multiple source units for a vehicle, etc., adding the function to store the existence of the connection of a terminal source to each unit, and displaying information about the terminal source on the display unit on the basis of the storage. CONSTITUTION:When an electric power source is turned on, the operating unit 1 conducts serial polling for each units and recongnizes the existence of the connection of units 3-5. At the same time, the unit 5 checks the existence of the connection of terminal sources 5a-5n and stores the results. When the information on the terminal sources of the audio unit 5 is displayed on the display of the operating unit 2, the operating unit 1 requests the audio unit 5 to send the existance of the connection of the unit 5 itself and the status on the connection of the terminal sources 5a to 5n. After receiving the status information from the audio unit 5, the operating unit 1 sends the status to indicate the existance of the connection of the terminal sources 5a-5n to the display unit 2.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention provides a plurality of source units, an operation unit having a common operation input means for the plurality of source units, and an operation unit that inputs audio from the plurality of source units. An audio unit that selectively processes signals, and a display unit that displays operating states of the plurality of source units and the audio unit in a time-sharing manner, and the units are coupled by a bus means so as to be able to communicate with each other. This invention relates to audio equipment.

The recent development of car audio has been remarkable, and a large number of source (sound source) units are now being installed. However, since the living space of a car is very limited and very narrow, it is impossible to bring devices that each have an operation input section and a display section into the car. Therefore, it has become possible to enable multiple source units to share an operation input section and a display.

[Technical background of the invention and its problems]

In conventional devices of this kind, a tape deck, TV tuner, AM/FM tuner, etc. are connected as source units, and a single audio unit processes audio signals from these source units. And the audio unit has a bass (BAS),
Terminal sources that perform functions such as treble (TRE), balance (BAL), and fader (FAD) are selectively connected. 1. The display unit is capable of graphically displaying the functions of all terminal sources connectable to the audio unit.

However, in conventional devices, when the above-mentioned terminal source graphic is displayed on the display unit when the device is initialized by power-on, unconnected terminal sources are also displayed in the center of the graph. Therefore, there was a possibility that the user would be misled.

[Object of the Invention] The present invention has been made in order to solve the above-mentioned drawbacks of the conventional devices. It is an object of the present invention to provide an audio device in which the terminal source of each unit is displayed on the display unit, thereby preventing display that may mislead the user.

[Embodiments of the invention]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an embodiment of the audio device according to the present invention, in which 1 is an operation unit, 2 is a display unit, 3 is a deck unit as a source unit, and 4 is a tuner as another source unit. and 5 are audio units, and these units are coupled via a common bus 6 so that they can communicate with each other.

The operation unit 1 not only instructs the screen to be displayed on the display unit 2 in response to key operations, but also instructs the deck unit 3, tuner unit 4, and audio unit 5 to operate. In addition to receiving the status from units 3 to 5 and instructing units 2 to 5 on the next operation,
Communication between units via the common bus 6 is comprehensively managed.

The display unit 2 has a display (not shown) made of, for example, a mixed crystal display, and selectively displays the operating states of the units 3 to 5 under the control of the operation unit 1. For this purpose, the display includes a unit display area that displays the connection of units other than the operation unit 1 to the common bus 6, and a unit display area that displays the connection of the terminal sources 5a to 5n to the audio unit 5 and their operating status. It has a terminal source display area 2a as shown in FIG.

The deck unit 3 is connected to the common bus 6, and in addition to playing back the set cassette tape according to instructions from the operating unit 1, it also generates a status based on a request from the operating unit 1.

The tuner unit 4 is connected to the common bus 6, and according to instructions from the operation unit 1, selects and detects a desired station from the radio waves received by the antenna, and also checks the status based on a request from the operation unit l. Occur.

The audio unit 5 is connected to the common bus 6, and processes audio signals from the deck unit 3 and tuner unit 4 according to instructions from the operation unit 1.
A status is generated based on a request from the operating unit 1. A plurality of terminal sources 5a to 5n are connected to the audio unit 5. The terminal source is:
For example, bass controller (BAS), treble controller (TRE), balance controller (BAL),
There are fader controllers (FAD), etc.

The common bus 6 also includes a data line DAT A, a chronograph line CLK, a line busy signal line RXEN, and a service request line S.
The government owns the RQ and reset line R3T.

In the above configuration, when the device power is turned on, the operation unit 1 performs a serial poll on each unit in response to this, and learns whether the units 3 to 5 are connected. At the same time, the unit 5 checks whether the terminal sources 5a to 5n are connected or not, and stores the result.

By the way, when displaying the terminal source of the audio unit 5 as shown in FIG. 2 on the display of the display unit 2, the operation unit 1 first asks the audio unit 5 whether or not the unit 5 itself is connected. and the terminal sources 5a to 5n. At this time, as shown in FIG. 4(al), the operating unit 1 first stores the transmitting side unit in the upper 4 bits, that is, the address of the operating unit 1, for example 0,0, and the receiving side unit in the lower bits. That is, 1 byte (8 bits) to which the address of the audio unit 5, for example 0.5, is assigned is sent,
Thereafter, a status request command to the audio unit 5 is sent using one byte.

When the audio unit 5 receives the status request command, as shown in FIG. Each assigned one hide is sent out, and the next one byte is used to send out a status acknowledge for the operation unit 1, and the next one byte is used to send out a status indicating whether or not the terminal sources 5a to 5n are connected.Terminal source 5a ~5n
For example, as shown in FIG. 5, the status of the connection is represented by 1 of each bit assigned to each end source, and 0 represents no connection.

The operation unit 1 that has received the status information first receives the address 0,0 of the receiving side operation unit 1 and the address 0,0 of the receiving side display unit 2, as shown in FIG. 4(C).
1, and then the following data is sent to audio unit 5.
0,0 and 0,5 indicating that the terminal sources 5a to 5n are connected, and then a status indicating whether the terminal sources 5a to 5n are connected is sent.

As described above, the display unit 2 knows whether or not the terminal source of the audio unit 5 is connected, and performs a display as shown in FIG. 2. Note that (a) shows the display of the terminal source display area when all connectable terminal sources are connected, and (b) shows the display of the terminal source display area when some terminal sources are not connected.

In the display in Figure 3, the terminal source is BASXTRE.

Another display example of the terminal source display area in the case of BAL and FAD is shown, in which the center of the connected terminal source is displayed when the power is turned on and the terminal source is turned on. Note that FIG. 3(a) shows B as a terminal source.
When AS, TRE, BAL, and FAD are all connected, ('b) shows the display when only FAD is not connected.

When the terminal source is adjusted by operating each operation key on the operation unit 1, the display position is moved up or down accordingly.

〔Effect of the invention〕

As explained above, according to the present invention, each unit other than the display unit coupled to the bus means checks the presence or absence of a terminal source and stores the information when the device is powered on. Since the display unit displays the terminal source of the unit coupled to the lotus means based on the accumulated information, the user can correctly know the connection of the terminal source without misunderstanding the connection. This eliminates the need for erroneous or unnecessary operations during subsequent adjustment operations, and provides a device with good operability.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the apparatus according to the present invention, FIG. 2 is a diagram showing a display example of the display unit in FIG. 1,
FIG. 3 is a diagram showing another display example of the display unit in FIG. 1, FIG. It is a figure which shows the example of some data inside. 1... Operation unit, 2... Display unit, 3... Deck unit, 4...
Tuner unit, 5...Audio unit, 5a to 5n...Terminal source. Figure 2 Figure 4 (b) [! φφ], Send check Received value readdress [==] ===Koni slip unit 11 (16th status acknowledge [==engineering==ko 0tsu's a, b
, -nf) #1t JAts? jZr-ysu (C)
[([[Work area Σ[] Yama 4 I 6 I! Su, Yujomine 1 nd front 1. L ≦, b21' dress [A Σ E E back] and f *DATA6゛-DATA that goes to Yumenoto 5 1) Usu bran [==technique==] ・Tooth. , b, -, n's ■ Poor 41 matches 87. Stakes Figure 5 (b)

Claims (1)

[Claims] a plurality of source units; an operation unit having common operation input means for the plurality of source units; an audio unit that selectively processes audio signals from the plurality of source units; and a display unit that displays the operating status of the audio unit in a time-sharing manner, and in which the units are coupled by bus means so as to be able to communicate with each other, and each of the units other than the display unit coupled to the bus means a terminal of the unit, the unit having means for checking the presence or absence of a terminal source and storing information thereon upon power-on of the device, and based on the stored information said display unit is coupled to the bus means; An audio device characterized by displaying a source.