JPH01236810A - Receiver - Google Patents

Abstract

PURPOSE:To surely attain storing by displaying that a storing operation is ineffective, with a channel displaying means when channel selecting data are stored into a memory with a data storing means over prescribed pieces. CONSTITUTION:The title receiver provides a memory 1a to be able to store prescribed channel selecting data, a data storing means 2d to supply channel selecting data to the memory 1a and channel displaying means 8 and 12 to display the station selecting channel. When the storing operation over the memory capacity of the memory 1a is executed at the time of the storing operation to the memory 1a of the channel selecting data, the storing to the memory 1a is not executed and the effect is displayed by the channel displaying means 8 and 12. Thus, the operator can immediately discriminate the condition and while the displaying is watched, the storing operation is executed and thus, these operations can be surely executed without an error.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a receiver suitable for application to, for example, a television receiver equipped with a PLL synthesizer tuner.

[Summary of the invention]

The present invention is a receiver suitable for application to, for example, a television receiver equipped with a PLL synthesizer,
A memory capable of storing a predetermined number of channel selection data, and a data recorder 1 for supplying channel selection data to this memory.
．． ¥! means, data erasing means for erasing the channel selection data stored in the memory, and channel display means for displaying the selected channel; Note 1
．． When attempting to delete the channel selection data, the channel display means displays that the storage operation is invalid, and when there is no channel selection data stored in the memory, the data deletion means deletes the channel selection data stored in the memory. When an attempt is made to delete the channel selection data, the channel display means displays that the deletion operation is invalid so that the storage status of the channel selection data can be confirmed, thereby ensuring that the storage and deletion operations are performed without error. It is something.

[Conventional technology]

Conventionally, PLI,
There was something called a synthesizer tuner. This P
The LL synthesizer tuner is a PLL equipped with the tuner.
(Phase Locked Loop) Frequency divider ratio N
is changed for each channel of the television broadcast signal under control from a tuning microcomputer to obtain a frequency signal for tuning, and this frequency signal is mixed with the received broadcast signal to generate a predetermined intermediate frequency. It is used to obtain signals.

In this case, when performing so-called all-channel sequential tuning in which the receiving channels are changed one channel at a time in order of channel number, by changing the frequency division ratio N of the frequency divider at predetermined intervals, the receiving channel can be increased or decreased to number 115i. Then, channels are selected in order of channels.

It is also possible to preset the frequency division ratio N corresponding to the channel to be received by storing it in the memory as channel selection data in advance, and to receive only the preset channel at the time of reception.

By making it possible to perform so-called memory channel selection in which only channels stored and preset in the memory are received, a desired channel can be immediately received, and the usability of the television receiver is improved.

[Problem to be solved by the invention]

By the way, in the case of a television receiver that performs memory channel selection as described above, it is necessary to store channel selection data in the memory in advance, but this process of storing channel selection data is difficult for general users to understand. This had the disadvantage of being time consuming. In particular, it is difficult to quickly verify whether data has been correctly stored or deleted.

In view of the above, an object of the present invention is to provide a receiver of this type in which channel presetting can be easily performed.

[Means to solve the problem]

As shown in FIGS. 1 and 12, the receiver of the present invention includes a memory (1a) capable of storing a predetermined number of channel selection data, and a data storage means for supplying channel selection data to this memory (1a). (2d) and channel display means (8) and (12) for displaying the selected channel, and the data storage means (2d) stores a memo IJ<la
), when attempting to store channel selection data exceeding a predetermined number, the channel display means (8) and (12)
This is to display that the memory operation is invalid. Further, as shown in FIGS. 1 and 2, the receiver of the present invention includes a memo IJ(la) that can store a predetermined number of channel selection data, and this memo! Data erasing means (2C) for erasing channel selection data stored in J (la)
) and channel display means (
8) and (12), and memo! When the data erasing means (2e) attempts to erase the channel selection data stored in the memory (1a) when the channel selection data is not stored in the memory (1a), the channel display means (8) and (12) indicates that the erase operation is invalid.

[Effect]

According to the present invention, the channel selection data memo 'J (
Note to la) 1! ! During operation or memo! When deleting from l(la), 1. If a storage operation is performed that exceeds the storage capacity of Memo U (la), or if an deletion operation is performed when no data is stored, the data will not be stored or deleted in Memo IJ (la). is displayed on the channel display means (8) and (12), so the operator can immediately determine this state, and by performing memorization and erasing operations while looking at this display, these operations can be performed without error. It will be held in

〔Example〕

Hereinafter, one embodiment of the receiver of the present invention will be described with reference to the accompanying drawings.

This example is applied to a small pre-vision receiver equipped with a PLL synthesizer tuner.
1) indicates a microcomputer (hereinafter referred to as CPU) that controls the operation of this television receiver.
(1) controls the image receiving operation.

This CPU (1) is equipped with a tuner (
4) Memo U (la) that stores the channel selection data
is connected. This memo! Twelve J (la) can be stored in the channel selection data. In this example, the operation keys (2) include a channel up key (2a) as a channel selection key, a channel down key (2b), and a channel selection mode switch key (
2C), an enter key (2d) for storing channel selection data in the memo IJ (la), and an erase key (2d) for erasing channel selection data stored in the memory (1a).
2e), power on key (2f), and volume up key (
2g) and a volume down key (2h). In this case, the enter key (2d) and erase key (2e) are attached to the side of this television receiver, and the other keys (2a), (2b), (2c), (2f),
(2g) and (2h) are attached to the front of this television receiver.

In FIG. 1, (3) indicates an antenna, and the television broadcast signal received by this antenna (3) is
Supplied to the PLL synthesizer tuner (4).

Then, according to a command from CPU (1), this PLL
The television broadcast signal of a predetermined channel is converted into an intermediate frequency signal from the broadcast signal supplied to the synthesizer tuner (4), and the predetermined channel is selected.

In this case, there are two types of channel selection modes: an all channel sequential channel selection mode and a memory channel sequential channel selection mode, and these channel selection modes can be switched by operating the mode switching key (2C). Then, when in the all channel sequential selection mode, by pressing the channel up key (2a) or channel down key (2b), the CPU
A signal instructing channel up or down for each channel is supplied from (1) to the tuner (4), and when the memory channel sequential selection mode is selected, the channel up key (2a) or the channel down key (2b) is supplied to the tuner (4).
), you can make a memo using the predetermined operations described below!
This is as if a signal instructing the up or down of a channel stored and preset in J (la) is supplied from the CPU (1) to the tuner (4).

Then °C1 this intermediate frequency signal is sent to the intermediate frequency amplification circuit (5)
The intermediate frequency signal amplified by the intermediate frequency amplification circuit (5) is supplied to the video detection circuit (6), which performs video detection, and the detected signal is sent to the video processing circuit (7). ).

Further, under the control of the CPU (1), a character generator (8) creates display information such as a channel number, and supplies this display information to the video processing circuit (7).

The video processing circuit (7) converts the video detection signal supplied from the video detection circuit (6) into a primary color signal for image reception, and also converts the video detection signal supplied from the video detection circuit (6) into a primary color signal for image reception. numbers etc. based on the display information are superimposed on the signal. In this case, for example, when displaying a channel number using display information from the character generator (8), the channel number as display information is superimposed on the video signal so that the channel number is displayed in the upper right corner of the image.

In this example, the video display section of this receiver consists of a liquid crystal panel (12). That is, the primary color signal outputted by the video processing circuit (7) is supplied to the horizontal drive circuit (9) that drives the liquid crystal panel (12), and the horizontal synchronization signal extracted from the video signal by this video processing circuit (7) is and a vertical synchronization signal to the synchronization circuit (10).

Then, this synchronization circuit (10) supplies a timing signal created based on this synchronization signal to the horizontal drive circuit (9) and the vertical drive port 14 (1'l). By doing this, the primary color signals obtained by the horizontal drive circuit (9) are supplied to the liquid crystal panel (12) at a timing based on the timing signal, and an image based on the video signal is displayed on the liquid crystal panel (12). is displayed.

Further, the intermediate frequency amplifier circuit (5) extracts the audio signal contained in the intermediate frequency signal and supplies it to the audio signal processing circuit (13). The audio signal processing circuit (13) performs detection, amplification, etc. of the audio signal, and supplies the audio signal for output to the speaker (14).

With this configuration, the image of the television broadcast signal of the channel selected by the PLL synthesizer synthesizer (4) according to instructions from the CPU (]) is displayed on the liquid crystal panel (12), Audio based on this television broadcast signal is reproduced by a speaker (14).

Next, the operation when receiving an image with the television receiver of this example will be explained in detail. First, when you select all channels sequentially and receive images, press the channel selection mode switch key (
2C) sets the channel selection mode to all channel sequential selection mode. By doing this, you can use the channel up key (
Each time you press 2a) or channel down key (2b), the receiving channel increases or decreases by one channel.
You can select the desired channel. in this case,
When the channel is switched, under the control of the CPU (1), the channel number based on the display information from the character generator (8) is displayed on the channel display section (12a) in the upper right corner of the liquid crystal panel (12) where the received video is displayed. will be displayed for a few seconds. In this example, the tuner (
4) is a PLL synthesizer tuner, so the CPU
The dividing ratio setting information of the frequency divider, which is the tuning information supplied from (1) to the tuner (4), is a value that changes depending on the number of channels, and the character generator (8) is You can determine the channel number displayed.

When performing channel selection in the memory channel sequential selection mode, it is first necessary to preset the reception channel in this mode. The operation at this preset time is
To explain with reference to the flowchart in the figure, first select the channel you want to preset by operating the channel up key (2a) or channel down key (2b) in the all channel sequential selection mode mentioned above, and then LCD panel (12) displays images based on signal 1
display on top. Then, by pressing the enter key (2d), this channel is preset, that is, the channel selection data of this channel is stored in the memo IJ(la). In this case, CPU (1) is a memo! J (l
It is determined whether there is an empty area in a) to store this channel selection data, and if there is an empty area, this channel selection data is supplied to the memo IJ(la) and stored therein. And when this memorization takes place, C
Character generator (8) under the control of PU (])
According to the display information from the channel display section (12a) of the liquid crystal panel (12), an indication "+○○" indicating that the preset has been performed is displayed. In this case, the stored channel number is displayed in "○○". For example, the first
When a 2-channel preset is performed, r+12+ is displayed as shown in FIG.

Since the memory (la) in this example can already store 12 channel selection data, the above-mentioned preset operation allows memo! Channel selection data for 12 channels is stored in I (la), and this memo! If there is no free area in IC1a), even if a preset operation is performed, the data will not be stored in Memo'J (Ia). That is, when the enter key (2d) is pressed,
CPU (1) memo! It is determined whether or not there is an empty area in J (la), and when it is determined that there is no empty area, the channel selection data is not supplied to the memory (1a), and the display information from the character generator (8) is Channel display section (12a) of liquid crystal panel (12)
), a message indicating that the preset could not be set appears.
"Dou--" is displayed.

By presetting in this way, you can use the mode switch key (
When the memory channel sequential selection mode is selected in step 2C), each time the channel up key (2a) or channel down key (2b) is pressed, only the preset channels are sequentially raised or lowered. In addition,
At this time, the CPU (1) writes the data to the memory (la), judges the α state, and selects a channel with a high frequency (when the up key (2a) is pressed) or a channel with a low frequency (when the down key (2b) is pressed). ).

Next, to change the preset channels,
To explain the operation when deleting channel selection data stored in Memo + J (la) with reference to the flowchart in Figure 3, first press the channel up key (2a) or channel down key to select the preset channel you want to delete. Select by operating (2b) and tune in to this channel. Then, by pressing the erase key (2e), the preset channel is erased, that is, the channel selection data of this channel is erased from the memo IJ(la).

In this case, the CPU (1) determines whether or not channel selection data is stored in the memory (1a), and when it is determined that channel selection data is stored, the CPU (1) stores the corresponding channel selection data. Perform erasing.

At this time, under the control of the CPU (1), the display information from the character generator (8) is displayed on the channel display section (12a) of the liquid crystal panel (12) to indicate that erasing has been performed. is displayed. In this case, “○○
” displays the deleted channel number. For example, when erasing the 12th channel, r-12
J is displayed.

And a memo! If this deletion operation is performed when the J (la) has no memory of channel selection data, this will cause the channel display section (12) of the liquid crystal panel (12) to
12a), denoted as r,.

That is, when the erase key (2e) is pressed, the CPU
(1) is a memo! It is determined whether or not channel selection data is stored in memo IJ(la), and if no channel selection data is stored in memo IJ(la), the above-mentioned display rJ is sent from the character generator (8). The display information is displayed.

In this way, according to the television receiver of this example, the operator can take notes by looking at the display on the liquid crystal panel (12). J
It can be immediately determined whether or not the channel preset by storing it in memory (la) and the preset cancellation by erasing from this memory (la) have been performed correctly, and the operation of storing and deleting channel selection data can be performed without error. It will be done.

In the above-described embodiment, the tuner is a PLL synthesizer tuner, but it goes without saying that the present invention can be applied to other types of tuners that can be preset in the same way.

Further, in the above-mentioned embodiments, an example in which the present invention is applied to a television receiver has been described, but the present invention can be applied to other receivers such as an FM receiver. For example, as shown in FIG. 4, in the case of an FM receiver equipped with a receiving frequency display section (21), a channel up key (22) or a channel down key (23) and a channel selection mode switching key (2
4) and the Enter key (not shown) or the Erase key (not shown) to write to the memory 1. When the α operation is performed, if there is no free space in the memory capacity, as shown in Figure 5. , rFU is displayed in the reception frequency display section (21).
LLJ may be displayed to notify that the memory could not be stored.

Furthermore, it goes without saying that the present invention is not limited to the above-described embodiments, and can take various other configurations without departing from the gist of the present invention.

〔Effect of the invention〕

According to the receiver of the present invention, since the storage status and the erasure status are displayed, there is an advantage that the storage operation and the deletion operation of the channel can be performed without error.

[Brief explanation of the drawing]

FIG. 1 is a configuration diagram showing one embodiment of the receiver of the present invention, and FIG.
The figure is a front view showing the appearance of the example in Figure 1, Figure 3 is a flowchart for explaining the example in Figure 1, and Figures 4 and 5 are diagrams showing other embodiments of the present invention, respectively. . (1) is a micro combi coater, (2) is an operation key, (
2d) is the enter key, (2e) is the erase key, (8
) is a character generator, and (12) is a liquid crystal panel.

Claims (1)

[Scope of Claims] 1. A memory capable of storing a predetermined number of channel selection data, data storage means for supplying the channel selection data to the memory, and channel display means for displaying the selected channel, A receiver characterized in that when the data storage means attempts to store more than a predetermined number of channel selection data in the memory, the channel display means displays that the storage operation is invalid. . 2. A memory capable of storing a predetermined number of channel selection data, a data erasing means for erasing the channel selection data stored in the memory, and a channel display means for displaying the selected channel; When the channel selection data stored in the memory is not stored and the data erasing means attempts to erase the channel selection data stored in the memory, the channel display means displays that the erasing operation is invalid. A receiver characterized by: