JPH04117032A - Radio receiver - Google Patents

Abstract

PURPOSE:To relieve the load of stop a reception frequency required when a reception district is changed by selecting 1st and 2nd preset memories so as to use the memory in response to the reception district. CONSTITUTION:The receiver is provided with a mode selection switch selecting the main mode and the sub mode and two sets of preset memories 8, and a controller 7 which controls the reception in a way that when the main mode is selected by the switch 10, a reception frequency stored in memory areas FM1, AM1 is received in response to a preset switch 11 and when the sub mode is selected by the switch 10, a reception frequency stored in memory areas FM2, AM2 is received in response to the preset switch 11. Normally the main mode is selected and in the special case, the sub mode is selected. Thus, the storage operation of the reception frequencies is reduced.

Description

[Detailed Description of the Invention] (Summary) In a radio receiver having a preset reception function, first and second preset memories can be selected and used depending on the reception area. To reduce the trouble of memorizing the required reception frequency when the frequency changes.

[Industrial application field]

The present invention relates to a radio receiver, and particularly to a radio receiver having a preset reception function.

[Prior Art] Receivers having a preset function have been widely used because they allow easy reception frequency selection operations, and are particularly popular for use in vehicles. This preset function stores a reception frequency in a preset memory corresponding to a preset switch, and when the preset switch is operated, a reception operation is performed at the reception frequency stored in the corresponding preset memory.

[Problem to be solved by the invention]

In a car radio receiver, the receivable frequencies change as the car moves, so in this case it is necessary to change the contents of the preset memory.

However, considering how a car is used, it is often driven near the owner's place of residence, so if the contents of the preset memory are changed after moving away from the place of residence, the preset memory will be reset again when the user returns to the place of residence. There is a problem in that it is necessary to restore the contents of the memory to its original state, which is very time consuming.

[Means to solve the problem]

The present invention solves such problems by storing a plurality of desired receiving frequencies in a first preset memory in correspondence with a plurality of corresponding preset switches, and when the preset switches are operated, A radio receiver configured to receive a stored reception frequency includes a mode selection switch for selecting a main mode and a submode, a second precent memory, and a second precent memory when the main mode is selected by the mode selection switch. 1. Receives the reception frequency stored in the second preset memory according to the brisset and toswitch, and receives the reception frequency stored in the second preset memory according to the preset switch when the submode is selected by the mote selection switch. The device is characterized in that it has a control device for receiving and controlling.

[For production]

A preset memory for performing a blicent operation is selected from the first blicent memory and the second preset memory by the mote selection switch, and the two types of preset functions by the first and second preset memories function separately.

〔Example] Next, embodiments of the present invention will be described using the drawings.

FIG. 1 is a configuration diagram showing an embodiment of the present invention.

1 is an antenna, 2 is an FM receiving unit that receives FM broadcasting, and 3
4 is an AM receiving section that receives AM broadcasting; 4 is a changeover switch that selects the signal from the FM reception section 2 and the signal from the AM reception section and sends it to the amplifier 5; the signal selected by the changeover switch 4 is sent to the amplifier 5; 5 and reproduced as an audio signal from a speaker 6. 7 is a microcomputer,
It controls the receiving frequencies of the AM receiving section 2 and the FM receiving section 3, and controls the changeover switch 4. To set the receiving frequency,
For example, it can be realized by a known configuration that sets the frequency division ratio (N value) of the programmable dehyder of the PLL circuit in the PLL synthesizer receiver G. 8 is a preset memory for storing the receiving frequency, and the receiving frequency (or a value corresponding to the receiving frequency such as Mt) is stored in accordance with the preset switch 11.
is memorized.

In addition, the preset memory 8 is divided into one for FM reception and one for AM reception, and two sets of them are provided (
FMI, AMI, FM2. AM2).

9 is a band selection switch that switches between AM and FM, 10
selects a set of preset memories, that is, the main mode selects the blisse memory AMI, FMI and the blisse memory AM2. This is a mode selection switch that selects a submode that selects FM2.

Next, the operation of the microcomputer 7 will be explained. Second
The figure shows the operation of the micro combinator 7, and will be explained below with reference to this figure. When the power is turned on, step S1
Move to determine whether it is the main mote. Incidentally, when the power is turned on, the mode before the power is turned off is stored, and a judgment is made according to the stored contents. If the main mode is determined in step 31, the process moves to step S2, and the preset memory F
M'l AMI is selected (furthermore, FMI is selected during FM reception and AMI is selected during AM reception), and a preset operation for the preset memories FMI and AMI becomes possible. Further, if it is determined in step S1 that the sub mode is selected, the process moves to step S3, and the preset memory F
M2. AM2 is selected (Furthermore, when receiving FM, FM
2, AM2 is selected when receiving AM), and this preset memory FM2. Preset operation for AM2 becomes possible. Then, step S2 and step S
3, the process moves to step S4, and a normal reception operation (a preset reception operation is also performed) is performed. In step S5, it is determined whether the mode selection switch IO has been operated, and if it is determined that the mode selection switch IO has been operated, it is determined in step s6Q whether or not the mode is the main mode.

If the mote is determined to be the main mote in step S6, the mote is changed to the sub mote in step S7, and the process returns to step Sl. Further, if it is determined in step S6 that the mote is a sub mote, the mote is changed to the main mode in step S8 and the process returns to step S1.

As described above in detail, according to this embodiment, when the main mote is selected, the preset memories FMI, A
When a preset operation is performed by MI and a submode is selected, the preset memory FM2. Since the preset operation is performed by AM2, select the main mode for normal use (use near the receiver owner's residence).
For special use (use in a remote location from the receiver owner's residence), by selecting the sub-mode, the frequency used during normal use is always stored in the reset memory FMIAMI, and the mode selection switch 10 is used to switch to the main mode. By selecting , it is possible to easily receive the frequency, thereby reducing the need for storing reception frequencies.

〔Effect of the invention〕

As described in detail above, according to the present invention, in a radio receiver having a preset reception function, the first and second preset memories can be selected and used depending on the reception area. For example, this has the effect of reducing the effort required to memorize reception frequencies when the reception area changes.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 is a flowchart showing the operation of the microcomputer 7. As shown in FIG. In the figure, 1 is an antenna, 2 is an FM receiver, 3 is an AM receiver, 4 is a selector switch, 5 is an amplifier, 6 is a speaker, 7 is a microcomputer, 8 is a preset memory, 9 is a hunt selection switch, and 9 is a Mode selection switch, 10 is a reset switcher. Figure 2

Claims (1)

[Claims] 1. A plurality of desired reception frequencies are stored in a first preset memory in correspondence with a plurality of corresponding preset switches, and when the preset switch is operated, the reception frequency stored in correspondence with the plurality of desired reception frequencies is A radio receiver configured to receive the following information: a mode selection switch for selecting a main mode and a submode; a second preset memory; and when the main mode is selected by the mode selection switch, the information is stored in the first preset memory. When the submode is selected by the mode selection switch, the second reception frequency is received according to the preset switch.
What is claimed is: 1. A radio receiver comprising: a control device for controlling reception frequencies stored in a preset memory in accordance with a preset switch;