JPS61264815A - Receiver - Google Patents

Abstract

PURPOSE:To improve remarkably the operability by displaying a channel selection disable mark when an idle channel selection command comes and then displaying the original channel selection channel. CONSTITUTION:A data corresponding to plural channels is preset to a nonvol atile memory 24 and stored. Channel selection means 14, 15 read a channel selection data of a channel represented by the command from a memory 24 when a channel selection command is given in response to the input operation of the user and selects a broadcast station based on the data. The means 14, 15 display the selected channel on channel display means 14, 22, 33. Further, as to an idle channel whose selection data is not stored in the memory 24, when the channel selection is commanded, the means 14, 22, 23 display a channel selection disable mark by the means 14, 15 and the original channel selection channel is displayed. As a result, the user confirms visually whether or not the operation is proper and if mis-operation takes place, the channel selection receiving state is ensured without re-operation.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a receiver, for example, a D B S (dire
ct-broadcast 5atellite) is suitable for application when receiving broadcasts.

B. Summary of the Invention The present invention provides a memory for storing tuning data corresponding to a plurality of channels, a channel display means for displaying the selected channel, and a method for selecting a corresponding channel from the memory based on an incoming channel selection command. In a receiver equipped with a channel selection means for reading out data and selecting a broadcast wave, when a command is given to select an empty channel for which the channel selection data is not stored in the memory, a channel selection unavailable mark is displayed on the channel display means. By displaying the channel for a predetermined period of time, and then displaying the original selected channel, if the user makes a mistake in operation, the user is notified of the error, and the user is also able to return to the original selection without having to perform the operation again. This is designed to maintain station reception status.

C Conventional technology With DBS broadcasting, receivers scattered over a wide area can directly receive broadcast waves arriving from artificial satellites using small parabolic antennas. It is being considered that the system could be used as a means of transmitting information from the center to each branch via receivers installed at branches scattered throughout the region. In this case, the user can specify any frequency included in the applicable broadcast band and preset a channel on which information can be transmitted, and thus can select multiple channels preset with tuning data representing a specific frequency. Utilization efficiency can be increased by transmitting multiple pieces of information at the same time.

In this way, when a plurality of channels capable of transmitting information are preset, the user needs to command the channel to be selected by, for example, key input and select the broadcast wave of the desired channel.

D Problems to be Solved by the Invention However, when performing a channel selection operation, there are cases where a channel for which selection data is not preset is commanded due to an erroneous operation, and in such a case, the frequency to be selected remains undefined. A channel selection operation will be performed. Therefore,
Since the channel selection operation is performed without control, for example, C
Random images due to noise are formed on the RT display, which may cause discomfort to users.

Furthermore, in the past, the user only recognized that he had made an erroneous operation by seeing such random images appearing on the CRT display, and then had to perform the channel selection operation again. Therefore, if an erroneous operation is made once, there is a complication in that the user must perform the channel selection operation at least once more.

The present invention has been made in consideration of the above points, and it is possible to notify that when a channel for which channel selection data is not preset is commanded, and to restore the original channel selection reception state without re-operation. The object of the present invention is to provide a receiver that can ensure the following and thus improve complementability.

Means for Solving Problem E In order to solve this problem, the present invention provides a memo IJ24 that stores tuning data corresponding to a plurality of channels, and a channel display means (1) that displays the selected channel.
4, 22, 23), and a tuning means (14, 15) for reading out corresponding tuning data from the memory 24 based on an incoming channel tuning command and tuning a broadcast wave. 14, 15) are channel display means (14, 22, 23) when a channel selection command for an empty channel for which selection data is not stored in the memory 24 arrives.
), the unselectable mark "-1" is displayed only for a predetermined period of time, and then, before a channel selection command for an empty channel arrives, 5 channels are displayed that are currently being selected.

The F effect memory 24 stores tuning data corresponding to a plurality of channels in advance, and is stored in the tuning means (14).
, 15) reads out the tuning data of the channel represented by the channel selection command from the memory 24 when a channel selection command is given in response to the user's input operation, and adjusts the broadcast wave based on this tuning data. Select a channel. At the same time, the channel selection means (14, 15) displays the selected channel on the channel display means (14, 22, 23).

Further, when the channel selection means (14, 15) is instructed to select an empty channel for which the channel selection data is not stored in the memory 24, the channel display means (14, 22, 24)
) is first displayed with the unselectable mark "-1", and then the original selected channel is displayed.

As a result, the user can visually check whether the operation has been performed appropriately, and even if the user makes a mistake, the user can maintain the channel selection reception state without having to perform the operation again.

G example An embodiment of the present invention will be described in detail below with reference to the drawings.

In FIG. 1, broadcast waves received by an antenna 11 are supplied to an information reproducing circuit 13 of a broadcast wave receiving section 12,
The information reproducing circuit 13 receives the broadcast wave of the channel corresponding to the channel selection signal S1 given from the channel selection circuit 15.

The tuning circuit 15 is controlled for tuning by a tuning command signal S2 generated in a signal processing circuit 14 having a microcomputer configuration, for example, and sends out a tuning signal S1 corresponding to the tuning command signal S2.

The signal processing circuit 14 has signals from "0" to "9" as shown in FIG.
When a key matrix 21 including an input device 1 including a numeric keypad having a ``'' key and an end key ``ENTERJ'' is connected, and each key of the key matrix 21 is selectively operated, code data representing a corresponding number is generated. is taken into the input data register 25 of the signal processing circuit 14.

In the case of this embodiment, the signal processing circuit 14 is configured to input that the data input operation has been completed by operating the end key "ENTERJ" after inputting numerical data using the numeric keypad.

In this way, when numerical data is entered one digit at a time using the numeric keypad, the signal processing circuit 14 operates the character generating means 22 based on the data taken in one digit at a time, and displays a predetermined digit, for example, a 5-digit data display 23. Then, characters corresponding to the input channel data are displayed sequentially from the lower digits to the upper digits.

Further, the signal processing circuit 14 is configured to take out corresponding channel selection data from the nonvolatile memory 24 based on numerical data taken in from the numeric keypad when the end key "rENTER" is operated.

In the above configuration, the signal processing circuit 14 performs tuning processing for broadcast waves of each channel according to the processing procedure shown in FIG. That is, after starting the program in step SPI, the signal processing circuit 14 determines whether numerical data as a channel selection command for commanding the channel to be selected has been input from the numeric keypad of the key matrix 21 in step SP2. If a negative result is obtained, step SP2 is repeated until numerical data specifying the channel to be selected is obtained.

Eventually, when numerical data specifying a channel is input from the key matrix 21, it is stored in the input data register 25, and when a positive result is obtained in step SP2, the process moves to step SP3 and is input to the data display 23. A number indicating the selected channel (for example, the number "5" for channel 5) is displayed. Thereafter, the process moves to the next step SP4, and it is determined whether data has been input from the end key rENTERJ of the key matrix 21. If a negative result is obtained in step SP4, the step SP4 is repeated and the end key rENT is pressed.
Waits for data to be input from ERJ. Data is input from the end key rENTERJ and step SP
4, if a positive result is obtained, the signal processing circuit 14
Then, the process moves to step SP5, and the channel selection data corresponding to the manually input channel is fetched from the nonvolatile memory 24, and then the process moves to step SP6.

Step SP, 6 is a step of determining whether or not the frequency data from the nonvolatile memory 24 is preset. When the signal processing circuit 14 obtains a positive result in step SP6, the signal processing circuit 14 moves to step SP7 and operates to continuously display the key-entered channel number,
Further, a channel selection command signal s2 corresponding to the channel selection data from the non-volatile memory 24 is given to the channel selection circuit 15 of the broadcast wave receiving unit 12 to perform a channel selection operation for the channel,
Thereafter, the process returns to step SP2, and a state awaits the next channel selection command, that is, data representing the channel to be selected.

Thereafter, each time numerical data commanding the channel to be selected is input from the key matrix 21, step 5P
The channel selection operation for the channel is executed through a loop of 2-3P3-5P4-3P5-SF3-5P7.

Incidentally, the user may input data corresponding to a channel that has not been preset from the key matrix 21 by erroneous operation. In this case, when a negative result is obtained in step SP6, the process moves to step SP8. In step SP8, the signal processing circuit 14 generates a channel selection disabled mark, such as " -1” is displayed on the data display 23, and then the next step SP
Moving to step 9, it is determined whether the display time has elapsed for a sufficient time for the user to visually check, for example, 3 seconds.

When the display time has elapsed for 3 seconds, an affirmative result is obtained in step SP9, and the process moves to the next step 5PIO, where the channel that was selected before the erroneous operation is selected based on the data stored in the channel selection register 26. is displayed on the data display 23 again.

For example, frequency data for the 5th channel, 9th channel, and 11th channel is preset and stored in the nonvolatile memory 24,
Channel 5 is currently selected and the input data display 23
Assume that "5" is displayed as shown in FIG. 4(A). If a manual key operation is performed for the seventh channel that has not been preset in this state, the signal processing circuit 14 displays the number "7" on the data display 23 through steps SP2 and SF3, as shown in FIG. 4(B). Display.

Thereafter, when data is given from the end key rENTERJ, the signal processing circuit 14 passes through steps SP4 and SF3 and determines in step SP6 whether or not tuning data for the seventh channel has been preset. In this case, since the channel selection data has not been preset for the seventh channel, a negative result is obtained in step SP6, and the process proceeds to step SP8 and step SP9 in order, and as shown in FIG. 4(C), it is impossible to select the channel. "-1" is displayed for 3 seconds.

After 3 seconds have elapsed, the signal processing circuit 14 performs step 5pi.
Moving to step o, the channel that was being displayed before the erroneous operation, that is, "5" representing the fifth channel, is displayed as shown in FIG. 4(D).

Here, if the seventh channel is specified due to an erroneous operation, the display changes as shown in FIG. 4(A) to FIG. 4(D) as described above. On the other hand, the channel selection command signal S2 is not sent out from the signal processing circuit 14 (therefore, the fifth channel, which was selected before the erroneous operation, continues to be selected without interruption even after the erroneous operation.

As described above, according to the receiver shown in Fig. 1, if a user makes a mistake when inputting a channel selection and specifies a channel that is not preset, a message indicating the mistake has been made is displayed and the user is visually notified. It can be confirmed. Also,
At this time, since the channel selection is continued without switching, it is not necessarily necessary to perform the channel selection operation again after an erroneous operation, and the input operation can be simplified accordingly.

Incidentally, in DBS broadcasting, unlike general television broadcasting, it is possible to arbitrarily allocate frequencies to each channel, so it is possible to preset and erase the tuning data corresponding to the frequency for each channel many times. Therefore, the above-mentioned effect becomes even more significant because there is a greater chance of erroneous operations being performed during input.

In addition, although the embodiment in which the present invention is applied to a DBS receiver has been described above, the present invention can be widely applied to various receivers as necessary.

H Effects of the Invention As described above, according to the present invention, when a user makes a mistake and inputs a tuning command for a channel for which tuning data is not preset, it is possible to notify the user of this fact. In addition, by maintaining the channel selection reception state at that time, it is possible to eliminate the need for new input operations.
In this way, it is possible to realize a receiver that can further improve operability.

[Brief explanation of drawings]

Fig. 1 is a block diagram showing an embodiment of the receiver according to the present invention, Fig. 2 is a flowchart showing the procedure of the channel selection process of the receiver of Fig. 1, and Fig. 3 is used to instruct the channel to be selected. FIG. 4 is a route map showing the input device; FIG. 4 is a route map showing the order in which the display changes when a channel selection command is erroneously operated. 11... Antenna, 12... Broadcast wave receiving section, 14... Signal processing circuit, 21...
・Key matrix, 22...Character generation means, 2
3...Data display, 24...Nonvolatile memory.

Claims (1)

[Scope of Claims] A memory for storing tuning data corresponding to a plurality of channels, a channel display means for displaying the selected channel, and a corresponding channel selection from the memory based on an incoming channel selection command. a channel selection means for reading data and selecting a broadcast wave; the channel selection means indicates that the channel display means cannot select a channel when an empty channel selection command for which the channel selection data is not stored in the memory arrives; A receiver characterized in that a mark is displayed for a predetermined period of time, and then the channel that was selected before the channel selection command for the empty channel arrived is displayed.