JP3331761B2 - Recording and playback device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to recording using a disc.
It relates to a playback device .

[0002]

2. Description of the Related Art In many cases, for example, when carrying a portable radio or the like when traveling domestically or abroad, it is difficult to tune well because the broadcast station and broadcast frequency in the area are not known at all. For this reason, some receivers have a function called auto scan stop so that tuning can be performed without knowing the frequency to be received. In this method, the reception status is detected while changing the reception frequency, and the broadcast is sequentially stopped at the frequency at which the broadcast can be received.

[0003]

However, even if the auto scan stop is performed, the scan stop may not be easily performed when the radio wave condition changes rapidly in an area with few broadcasting stations or an area with many mountains. There is a problem. In addition, an automatic scan stop must be performed for each area while moving, and the state of radio wave reception becomes particularly unstable while moving. Therefore, this method cannot be said to be a suitable tuning method.

In addition to the automatic scan stop,
When tuning is performed by searching for a frequency to be received and tuning is performed, there is a disadvantage that the user does not know the name of the broadcast station even if the tuning can be performed.

[0005] In addition, the reception frequency is set to RAM or RO in the main body.
Some receivers can be preset to M. In this case, tuning is performed by specifying a preset number, but the storage capacity is limited, especially in portable small radios, etc. It is difficult to be able to preset the frequency of a foreign broadcasting station. For this reason, tuning is ultimately performed at a travel destination by the above-described auto scan stop function.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of such a problem, and records information such as a broadcast station name and a broadcast frequency using a disk and reads out the information from the disk. An object of the present invention is to make it possible to easily tune a desired broadcast station by performing tuning at a broadcast frequency.

Therefore, as a recording / reproducing apparatus , a first area in which at least a plurality of broadcast station name data and a broadcast frequency corresponding to each broadcast station name data are recorded,
Recording a recording medium having a second area in which a signal can be recorded
And in the recording / reproducing apparatus for reproducing, the first area
Reproducing means for reading the broadcast frequency corresponding to al broadcast station name data, storage means for storing a corresponding broadcast frequency as broadcast station name data read by said reproducing means, the broadcasting station names stored in the storage means Display means for displaying data and / or a corresponding broadcast frequency; and selecting desired broadcast station name data and / or a corresponding broadcast frequency from broadcast station name data and / or a corresponding broadcast frequency displayed on the display means. Selecting means, selected by the selecting means
To the desired broadcast station name data and / or the corresponding broadcast frequency
Tuning control means for performing tuning control based on the tuning control;
Receiver for receiving broadcasts from broadcast stations tuned by means
Stage, a received signal received by the receiving means, and the receiver
Corresponding to the broadcasting station name received in the step, the recording medium
And recording means for recording the information in the recording medium .

[0008] Further, the broadcast medium is recorded with broadcast station name data and broadcast frequency corresponding to the regional data. The selection means can further select an area, and stores the broadcast station data and the broadcast frequency corresponding to the area selected by the selection means in the storage means.

Further, at least a plurality of broadcast station name data and broadcast frequency data corresponding to the broadcast station name data are recorded on the recording medium. Further, each broadcast station name data is recorded in correspondence with the regional data. Further, broadcast program data is recorded corresponding to each broadcast station name data.

[0010]

In the tuning system having the above-mentioned configuration, the user can complete the tuning operation by selecting the broadcast station name displayed on the display means with the selection operation means. That is, in this case, the tuning operation is performed under the control of the tuning control means at the broadcast frequency corresponding to the selected broadcast station name. Therefore, the user only has to perform an operation of designating the desired broadcast station.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 shows the appearance of a portable radio receiver equipped with a recording / reproducing apparatus tuning system of the embodiment and a disk. The disk 1 is a disk applied to a so-called mini disk system, and is housed in a cartridge K. When the shutter S is opened, the disk recording surface is exposed, and the recording / reproducing operation is performed.

Reference numeral 10 denotes a radio receiver. Reference numeral 11 denotes a disk insertion unit for inserting / removing the disk 1. Reference numeral 12 denotes a display unit configured by, for example, a liquid crystal panel. 13
Is an earphone code, which transmits a received voice to the earphone 14. Further, the earphone cord 13 is designed to double as a receiving antenna.

Reference numeral 15 denotes a reproduction operation key for the inserted disk 1, 16 denotes a stop key, and 17 denotes an AMS / search key. Reference numeral 18 denotes a recording key. Reference numeral 19 denotes an up / down tuning key for manually setting the reception frequency.

Reference numerals 20 to 22 denote keys used for selecting a broadcasting station on the display unit 12. Reference numeral 20 denotes a tuning mode key. For example, when the tuning mode key 20 is pressed, a list of broadcast stations and frequencies is displayed on the display unit 12 as shown in FIG. In response to this, the user operates the up / down key 22 to move the pointer P on the display screen to select a desired broadcast station. And enter key 21
The selection is confirmed, and tuning is performed by the operation described later. Reference numeral 23 denotes a remote control unit which can execute a predetermined operation among these various operations.

FIG. 2 shows the internal configuration of the radio receiver 10. Reference numeral 31 denotes a disk drive unit, and
The recording / reproducing operation is executed for the. Reference numeral 32 denotes a recording / reproduction processing unit. Disk 1 in the disk drive unit 31
Is read by the recording / reproducing processing unit 32. The recording / reproducing processing unit 32 encodes the input data, supplies the encoded data to the disk drive unit 31, and records the data on the disk 1.

Reference numeral 33 denotes a controller constituted by a microcomputer, and reference numeral 34 denotes a RAM. The controller 33 causes the disk drive unit 31 and the recording / reproduction processing unit 32 to execute a reproduction operation for the disk 1,
The reproduced data can be stored in the RAM 34. Also, required data can be supplied to the recording / reproducing processing unit 32 to be encoded, and recorded on the disk 1 by the disk drive unit 31. Also, RAM3
4 is supplied to the display unit 12 for display.

An operation unit 35 corresponds to the various operation keys 15 to 22 and the remote control unit 23 described above. The operation information of the operation unit 35 is input to the controller 33, and the controller 33 performs necessary operation control according to the information.

Reference numeral 36 denotes a PLL tuning unit serving as a so-called PLL synthesizer tuner, which comprises a phase comparing unit 37 and a tuning unit 38. The phase comparator 37 is connected to a reference oscillator including an oscillator X and capacitors C ₁ and C ₂ .
The tuning section 38 includes a varicap VC, a coil L ₁ ,
Tuning frequency controller according to the resistance R ₁ is connected. This P
In the LL tuning unit 36, when the tuning frequency data _Df is supplied from the controller 33 to the phase comparing unit 37, the tuning frequency of the tuning unit 38 is controlled correspondingly and reception is performed. Reference numeral 39 denotes an antenna.

After the received signal is demodulated by the demodulation unit 40, it is amplified by the amplifying unit 41 via the T terminal of the switch 42, supplied to the earphone 14, and outputted as sound.

The received audio signal is also supplied to a recording / reproducing processing unit 32. When the recording key 18 is pressed, the controller 33 causes the recording / reproducing processing unit 32 to encode the received audio signal, and
For recording on the disk 1.

When the switch 42 is connected to the PB terminal, the audio data output from the recording / reproduction processing unit 32 is supplied to the amplification unit 41. That is, when sound is recorded on the disc 1, the reproduced sound can be heard with the earphone 14.

The disk 1 used in the disk drive unit 31 is a premastered disk, a hybrid disk, or a recording / reproducing disk. The premastered disk is an optical disk, and is a read-only disk on which data is recorded in a pit form. The recording / reproducing disk is a magneto-optical disk, and is a recording / reproducing disk in which data is recorded magnetically. Further, the hybrid disk is a disk having an area in which read-only data is recorded in a pit form and a recordable magneto-optical area.

FIG. 9 shows the structure of each disk. 9A, a lead-in area 92, a read-only area 93, and a lead-out area 96 are provided as an information recording area 91 from the inner peripheral side near the rotation center O as shown in FIG. I have. In all areas, data is recorded as pits. In the lead-in area 92, so-called P-TOC information is recorded as management information, and addresses and the like of data recorded in the read-only area 93 are managed.

Disc 1 to be a hybrid disc
9B, as an information recording area 91, as shown in FIG. 9B, a lead-in area 92, a reproduction-only area 93, a U-TOC area 94, a recording / reproduction area 95, and a lead-out area 96 from the inner side near the rotation center O. Is provided. In the lead-in area 92 and the read-only area 93, data is recorded as pits, while the U-TOC area 94 and the recording / reproduction area 9 are recorded.
5. The lead-out area 96 is a magneto-optical area where data is magnetically recorded.

In the lead-in area 92, so-called P-TOC information is recorded as management information, and in the read-only area 93, data as read-only data is recorded. The recording / reproducing area 95 is an area in which the user can write data. The management of the recording data track in the recording / reproducing area 95 is performed by the U-TOC data recorded in the U-TOC area 94.

The disk 1 serving as a recording / reproducing disk has a rotation center O as an information recording area 91 as shown in FIG.
A lead-in area 92, a U-TOC area 94, a recording / reproducing area 95, and a lead-out area 96 are provided from the inner peripheral side close to. That is, only the lead-in area 92 is a pit area, and P-TOC information is recorded here. The recording / reproducing area 95 is an area in which a user can write a data file. The recording data track in the recording / reproducing area 95 is managed by a U-TOC area 94.
Is performed based on the U-TOC data recorded in the.

The disk 1 of this embodiment can be applied to any of these, but the data is as follows.
As shown in FIG. 3, the broadcast station name and the broadcast frequency are recorded in correspondence. For example, for broadcasting stations all over Japan,
Each broadcast station name and broadcast frequency are recorded in alphabetical order, etc. FIG. 3 shows an example in which the information is recorded in the order of regions.

The broadcast station name data may be recorded in ASCII code or the like in the case of the alphabet. Alternatively, font conversion or the like may be performed on the controller 33 side using kana or kanji codes. Since the frequency data only needs to be a four-digit number, four bytes (32 bits) per broadcasting station are sufficient.

When such a disk 1 is loaded into the disk drive unit 31, the controller 33 operates as shown in FIG.
Tuning can be performed by the following processing. For example, when the user presses the tuning mode key 20,
The process of the controller 33 proceeds from step F101 to F102. Note that, for example, when the power of the radio receiver 10 is turned on, the process may automatically proceed to step F102.

In step F102, the recording / reproduction processing unit 32
And the disk drive unit 31 is controlled to reproduce the disk 1. Then, the reproduced broadcast station name data and broadcast frequency data as shown in FIG.
(F103). Then, data to be displayed among the data stored in the RAM 34 is sent to the display unit 12, and a list of broadcast station names and frequencies is displayed as shown in FIG. 1 (F104).

When the user presses the up / down key 22 in response to this display, the controller 33 controls the display so that the displayed pointer P is moved accordingly. When the enter key 21 is pressed, it is determined that the broadcast station indicated by the pointer P has been selected at that time.

It is to be noted that the data of all the broadcasting stations recorded on the disk 1 is fetched into the RAM 34 at one time.
Considering the capacity of AM34, it is often impossible. Also,
Displaying the data of all the broadcasting stations at once on the display unit 12 is impossible due to the screen size.

In such a case, the controller 30 may fetch part of the data into the RAM 34 and supply it to the display unit 12. Then, in response to the user's operation of moving the pointer P, reproduction from the disk 1 is performed again if necessary, and the data is stored in the RAM 34 and displayed. On the display, the display data may be changed in a form such as scroll display or page feed display.

When the user presses the enter key 21,
The receiving broadcast station has been selected. At this time, the controller 33 proceeds from step F105 to F106. Then, at that time, broadcast frequency data corresponding to the broadcast station name indicated by the pointer P on the display unit 12 is read from the RAM 34 and supplied to the phase comparison unit 37. This allows PL
The tuning operation is performed by the L tuning unit 36, and the broadcast of the broadcasting station is received.

By such a process, the user can enjoy the broadcast of the target broadcast station only by designating the broadcast station in any region of the whole country, eliminating troublesome and inaccurate tuning operation. Is done. Of course, the broadcasting stations to be recorded on the disc 1 can be a world-wide tuning system including broadcasting stations from all over the world.

By the way, as broadcast station data to be recorded on the disk 1, regional data may be added as shown in FIG. In Figure 5, Hokkaido, Tohoku, Kanto, Chubu,
············································································································································································ Recorded on FIG. In this way, by associating each broadcast station name data with the regional data, it is possible to perform a tuning operation according to the region. For example, the controller 33 can perform processing as shown in FIG.

First, for example, when the user presses the tuning mode key 20 or when the power of the radio receiver 10 is turned on, the processing of the controller 33 proceeds from step F201 to F202, and the recording / playback processing section The disk 1 is reproduced by controlling the disk drive 32 and the disk drive unit 31. Then, first, only the local data is stored in the RAM 34 (F203). Then, the area data stored in the RAM 34 is sent to the display unit 12 to display a list of area names (F204).

In response to this display, the user selects a certain area, that is, an area where oneself is currently located, by using the up / down key 22 and the enter key 21 (F205). When a region is selected, the controller 33 controls the recording / reproduction processing unit 32 and the disk drive unit 31 to reproduce the disk 1 and stores broadcast station name data and broadcast frequency data included in the region in the RAM 34. Go (F206, F207). Then, the data to be displayed among the data stored in the RAM 34 is sent to the display unit 12 to display a list of broadcast station names and frequencies as shown in FIG. 1 (F208).

The up / down key 22
And waits for a selection operation by the enter key 21 (F209). When a broadcast station is selected, the broadcast frequency data corresponding to the broadcast station name is read out from the RAM 34, supplied to the phase comparison section 37, and tuned by the PLL tuning section 36. Execute the action (F
210).

By such processing, the operation of the user becomes simpler. For example, if the names of broadcasting stations in Japan are displayed in a list by scrolling or the like, it becomes difficult to find the desired broadcasting station name. This is because only the station name is displayed, and the number of selections is reduced.
Of course, in practice, the regional data may be set more finely. Further, the regional data may be set in a plurality of stages. For example, in the case of a world-wide tuning system, the search may be performed first by country name, and then by region name.

In this embodiment, the audio signal received as described above is supplied to the recording / reproducing processing unit 32, and can be recorded on the disk 1 from the disk drive unit 31 (ie, air check). Of course, this is the case where the loaded disc 1 is a recording / reproducing disc or a hybrid disc. Therefore, in the present embodiment, at the time of recording, the name of the broadcast station can be registered on the disc in correspondence with the recorded sound. This process is shown in FIG.

When a user presses the recording key 18 (F301) while receiving a certain broadcast (F300), the controller 33 records the broadcast sound in the recording / playback processing unit 32 and the disk drive unit 31. The operation is executed (F302). When the stop key 16 is pressed, the recording operation is terminated (F
303), to manage the recorded audio track,
The TOC is updated (F304).

In this update, a track number is given to a recorded audio track, and a start address and an end address are written in the U-TOC. In the case of the mini-disc system, the track is stored in the U-TOC corresponding to the track. You can record your name. Therefore, the controller 33 reads the broadcast station name of the broadcast station being received at that time from the RAM 34 and supplies the read broadcast station name to the recording / reproducing processing unit 32 so as to be recorded as a track name in the U-TOC.

When the user presses the reproduction key 15 to reproduce the air-checked sound, the process of the controller 33 proceeds from step F401 to F402 in FIG. At this time, switch 4
2 will be switched to the PB terminal.

In step F402, the track name of the track to be reproduced is read from the U-TOC data. That is,
The name of the broadcasting station that performed the air check is read. Then, the controller 33 sends this to the display unit 12 to display the broadcast station name (F403). Then, the reproduction of the track is started, and the reproduced sound is output from the earphone 14 (F404).

In other words, in this embodiment, when reproducing the air check sound, the user can know the name of the broadcasting station that performed the air check by looking at the display section 12.

In the above embodiment, the broadcast station name, frequency, and local data are recorded on the disk 1. However, since the amount of data that can be recorded on the disk 1 is quite large, various types of data can be further stored. It can be recorded corresponding to the broadcasting station. For example, program guide data of a broadcasting station may be recorded. Then, if the user selects a broadcasting station so that the program guide can be checked on the display unit 12, it is possible to know what kind of program is broadcast even for a broadcasting station that is unknown at a travel destination. become able to.

When a recording / reproducing disc or a hybrid disc is used, a user may be allowed to register his / her favorite broadcasting station name and frequency. It is also possible for the user to independently set the region setting.

In the above-described embodiment, the broadcast station name and the frequency are displayed on the display unit 12. On the other hand, for example, only the broadcast station name may be displayed. Further, the processing of the controller 33 is not limited to the processing of FIGS. 4 and 6 to 8, and various changes can be made. Also, for example, as a process of performing a search for each region, if the set region is fixed, a designation operation key is provided for each region, and by pressing it, the region is directly selected. Is also good. In this case, the processing of steps F202 to F204 in FIG. 6 becomes unnecessary.

Of course, the radio receiver 10 is not limited to a portable radio, but the present invention is also effective for, for example, an on-vehicle radio. Disk 1 and disk drive unit 3
1. As the recording / playback processing unit 32, a CD-ROM system or a floppy disk system may be used in addition to the one corresponding to the mini disk system. Further, the present invention can be applied not only to the radio but also to a tuning system for another broadcast receiver such as a television.

[0051]

As described above, according to the present invention, since the broadcasting station name data and the frequency data are recorded on the disk, the broadcasting station name data and the frequency data can be recorded in a wide range, for example, nationwide regardless of the capacity limitation of the internal RAM of the receiving apparatus. Alternatively, preset registration on a worldwide basis can be realized. Then, the user can complete the tuning operation by selecting the broadcast station name displayed on the display means with the selection operation means, that is, nationwide, or any region of the world,
The user can enjoy the broadcast of the target broadcast station only by performing the designated operation for the desired broadcast station, and the troublesome and inaccurate tuning operation is eliminated.

If the area data is recorded corresponding to the broadcast station data, the broadcast station name can be searched for each area, and the user can easily select the broadcast station. Furthermore, by associating a program table with broadcast station data, it is possible to check the contents of programs in each region.

Furthermore, since a disc is used, broadcast audio can be recorded. In this case, if a broadcast station name is recorded as a track name corresponding to the track on which the broadcast audio is recorded, the user can perform air check. When the sound is reproduced, there is an effect that the name of the broadcasting station that performed the air check can be confirmed on the display means.

As described above, it is possible to realize a receiving system for easily and accurately enjoying broadcasting in any region of the whole country or the world.

[Brief description of the drawings]

FIG. 1 is an external view of a radio receiver equipped with a tuning system for a recording / reproducing device according to an embodiment of the present invention.

FIG. 2 is a block diagram of a tuning system of the recording / reproducing device of the embodiment.

FIG. 3 is an explanatory diagram of data recorded on a disc of the recording / reproducing apparatus of the embodiment.

FIG. 4 is a flowchart of a tuning process of the tuning system of the recording / reproducing apparatus of the embodiment.

FIG. 5 is an explanatory diagram of data recorded on a disc of the recording / reproducing apparatus of the embodiment.

FIG. 6 is a flowchart of a tuning process of the tuning system of the recording / reproducing apparatus of the embodiment.

FIG. 7 is a flowchart of a recording process of a tuning system of the recording / reproducing device of the embodiment.

FIG. 8 is a flowchart of a reproducing process of the tuning system of the recording / reproducing apparatus of the embodiment.

FIG. 9 is an explanatory diagram of the structure of the disk of the embodiment.

[Explanation of symbols]

 Reference Signs List 1 disc 10 radio receiver 11 disc insertion section 12 display section 13 earphone code 14 earphone 15 play key 16 stop key 17 AMS / search key 18 recording key 20 tuning mode key 21 enter key 22 up / down key 23 remote control section 31 disc Drive unit 32 Recording / reproduction processing unit 33 Controller 34 RAM 35 Operation unit 36 PLL tuning unit 37 Phase comparison unit 38 Tuning unit 39 Antenna 40 Demodulation unit 41 Amplification unit 42 Switch

Continuation of the front page (56) References JP-A-6-21769 (JP, A) JP-A-58-186214 (JP, A) JP-A 4-96125 (JP, U) JP-A 63-142915 (JP) (U, JP) U.S.A. 2-32253 (JP, U) U.S.A. U.S.A. 2-150845 (JP, U) U.S.A. 61-187495 (JP, U) (58) Fields surveyed (Int. Cl. ⁷ , DB Name) H03J 5/02 G11B 27/34 G11B 31/00 533 H04B 1/16

Claims (2)

(57) [Claims] 1. A system in which at least a plurality of broadcast station name data and a broadcast frequency corresponding to each broadcast station name data are recorded.
Area 1 and a second area where a received broadcast signal can be recorded
Recording and reproducing apparatus for recording and reproducing a recording medium having
Oite, said reproducing means for reading the broadcast frequency from the first region corresponding to the broadcast station name data, storage means for storing a corresponding broadcast frequency as broadcast station name data read by said reproducing means, said storage Display means for displaying the broadcast station name data and / or the corresponding broadcast frequency stored in the means, and the desired broadcast station name data and / or from the broadcast station name data and / or the corresponding broadcast frequency displayed on the display means. Or selecting means for selecting the corresponding broadcast frequency, and the desired broadcast station name data selected by the selecting means and
And / or performs tuning control based on the corresponding broadcast frequency.
Tuning control means and a broadcast station tuned by the tuning control means.
Receiving means for signal for at reception signal and the reception means received by said receiving means
Corresponds to the name of the receiving broadcasting station and records it on the recording medium
A recording / reproducing apparatus comprising: 2. The recording medium stores broadcast station name data and broadcast frequency corresponding to area data, and the selection means can further select a region, and the selection means can select the area. 2. The recording / reproducing apparatus according to claim 1, wherein each storage station data and broadcast frequency corresponding to an area are stored in said storage means.