JPH01102772A - Data reproducing device - Google Patents

Abstract

PURPOSE:To offer convenience on an operation by operating a disk reproducing part at the maximum speed in a state where a data reproducing part other tan the disk reproducing part is selected by a function selecting operator and also the reproduction of a disk is requested to the disk reproducing part. CONSTITUTION:In a device in which the disk reproducing part 11 switchable reproducing speed is selected by the function selecting operator, the disk reproducing part 11 is operated at the maximum speed in the state where the data reproducing part other than the disk reproducing part 11 is selected by the function selecting operator, and also, the reproduction of the disk 12 is requested to the disk reproducing part 11. Therefore, it is possible to promote the multifunction of the device such as to record a disk reproducing signal in a tape, etc., at high speed, for example, while the data reproducing part other than the disk reproducing part 11 is operated. In such a way, it is possible to offer the convenience on the operation to the user.

Description

[Detailed Description of the Invention] [Objective of the Invention] (Industrial Application Field) This invention provides a system for selecting and using a plurality of data playback units including a disc playback unit whose playback speed can be switched using a function selection operator. This invention relates to improvements in data reproducing devices.

(Prior Art) As is well known, in the case of audio e-devices, there is a composite data reproducing device in which, for example, a radio receiving section, a compact disc reproducing section, a cassette tape recorder section, etc. are arranged in the same cabinet. is becoming popular. In this type of data playback device, for example, a disc playback signal from a compact disc playback section is recorded onto a cassette tape by a cassette tape recorder section, while a playback signal from a radio reception section can be heard as audio. A so-called free monitor function is provided.

On the other hand, in the disc playback section and cassette tape recorder section, in order to shorten the time it takes to record analog audio signals played from a disc onto a cassette tape, playback and recording can be performed at twice the standard speed. Products with additional functions are emerging.

However, this type of data playback device is still in the early stages of development, and it is possible for users to actively utilize the free source monitor function mentioned above and the function to record and play back at twice the standard speed. There is still much room for improvement in terms of configuration and performance so that handling can be made even easier.

(Problems to be Solved by the Invention) As described above, conventional data reproducing devices have the problem that they have not yet been able to fully meet the needs of users.

Therefore, the present invention has been made in consideration of the above-mentioned circumstances, and in an apparatus in which a plurality of data playback sections including a disc playback section whose playback speed can be switched are selectively used with function selection and operation controls, the function selection operation is performed. When a data playback section other than the disk playback section is selected as a child and the disk playback section is requested to play a disc, by making the disk playback section operate at the fastest playback speed, for example, when the disk While a data reproducing section other than the reproducing section is operating, it is possible to promote multi-functionality such as high-speed recording of the disc playback signal onto a tape, etc., and it is possible to provide extremely good data reproducing that can be handled conveniently for the user. The purpose is to provide equipment.

[Structure 3 of the Invention (Means for Solving the Problems) That is, the data reproducing device according to the present invention includes a plurality of data reproducing units including a disc reproducing unit whose reproducing speed can be switched by switching the rotational speed of the disc. The present invention is intended for devices that have a plurality of data playback sections and use an improved function selection operator to select and use these plural data playback sections. Then, when a data playback section other than the disk playback section is selected using the function selection control and the disk playback section is requested to play a disc, the disk playback section is operated at the fastest playback speed. It is composed of

(Function) According to the above configuration, when a data playback section other than the disk playback section is selected and disk playback is requested, the disk playback section is operated at the highest playback speed. For example, while operating a data reproducing section other than the disc reproducing section, it is possible to promote multifunctionality such as recording a disc playback signal at high speed on a tape or the like, thereby making handling convenient for the user. Can be done.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings. However, the data reproducing apparatus described in this embodiment has three data reproducing sections, a radio receiving section, a compact disc reproducing section, and a cassette tape recorder section, arranged in the same cabinet. One of the three data reproducing sections is selectively used by a link switch.

In this case, the playback signal from the data playback section selected by the function switch will be generated as audio from the speaker, and the data playback section not selected by the function switch will also be generated, for example by the disk playback switch or It is activated when the cassette tape recording switch is operated.

FIG. 1 shows a disk reproducing section of a data reproducing apparatus described in this embodiment. That is, in the figure, reference numeral 11 denotes a disc playback mechanism section, which includes a disc table 14 on which a disc 12 is placed and which is rotated by the action of a disc motor 13.
, an optical pickup 15 that reads digital data recorded on the disk 12, and a pickup feed motor 16 that moves the optical pickup 15 in the radial direction of the disk 12.

Then, the reproduction R output from the optical pickup 15
The F signal is transmitted to an analog amplifier circuit 21 consisting of a current-voltage conversion amplifier circuit 17, 18, a wideband RF amplifier circuit 19, and a feedback circuit 20 that determines the characteristics of the wideband RF amplifier circuit 19.
After being amplified, the signal is supplied to the servo control circuit 22.

This servo control circuit 22 receives input reproduction R.
The F signal is level-sliced at a predetermined slice level and converted into digital data, and a disk motor control signal and a pickup feed motor control signal are generated based on this digital data.

Of these, the disk motor control signal is supplied to the disk motor 13 via a drive circuit 25 consisting of an amplifier circuit 23 and a feedback circuit 24, and its rotational speed is controlled. Further, the pickup feed motor control signal is supplied to the pickup feed motor 16 via the drive circuit 26, and the optical pickup 1
The moving speed of 5 is controlled.

Note that within the analog amplifier circuit 21, a tracking error signal and a focus error signal are generated. Of these, the tracking error signal is supplied to the optical pickup 15 via a drive circuit 29 consisting of an amplifier circuit 27 and a feedback circuit 28, and tracking servo is performed for an objective lens (not shown). Further, the focus error signal is supplied to the optical pickup 15 via a drive circuit 32 consisting of an amplifier circuit 30 and a feedback circuit 31, and focus servo for the objective lens is performed.

Here, the servo control circuit 22 controls a phase-locked loop circuit (PL) based on the generated digital data.
L) 33 is driven to generate a bit synchronization clock. Then, the servo control circuit 22 generates a data extraction clock based on the bit synchronization clock, and generates a data extraction clock along with the digital data to the digital signal processing circuit 3.
Output to 4.

This digital signal processing circuit 34 synchronizes with a system clock outputted from a clock generation circuit 36 including a crystal oscillator 35, and a RAM (read only memory) 3.
7 is used to perform jitter component absorption, error correction, and correction processing on digital data. The digital data output from this digital signal processing circuit 34 is then transferred to a D/A (digital/analog) conversion circuit 38.
The signal is converted into an R channel analog signal and supplied to an audio reproduction system (not shown) via amplifier circuits 39 and 40 and output terminals 41 and 42, respectively.

Here, this compact disc player has:
A reproduction speed control circuit 43 is provided.

When the disc 12 is required to be played back at twice the standard playback speed, the playback speed control circuit 43 controls the crystal oscillator 35 and the phase-locked loop circuit 33 to use a system clock at twice the standard frequency. and control to generate a bit synchronized clock, and each feedback circuit 2
Wideband RF amplifier circuit 19 for 0.24.28.31
．． This functions to switch the characteristics of the drive circuits 25, 29, and 32 so that they are optimal for reproduction at twice the standard speed.

The playback speed control circuit 43 also has the function of causing the display circuit 44 to display the operating status, time, etc. of the compact disc player.

Here, the system clock output from the clock generation circuit 36 is supplied to the cassette tape recorder 46 via the digital signal processing circuit 34 and the synchronization control circuit 45. This cassette tape recorder 46 is of a type in which the tape running speed during recording and reproduction changes in synchronization with the system clock, that is, the recording and reproduction speed changes.

Therefore, when the disc 12 is being played back at the standard speed, the system clock is also at the standard frequency, so when the cassette tape recorder 46 is set to the recording state, the recording speed is also standard, and the output terminals 41 and 42 The output acoustic signal is now recorded on the tape at standard speed. Furthermore, when the disc 12 is being played back at twice the standard speed, the system clock is also at twice the standard frequency, so if the cassette tape recorder 46 is set to recording mode, the recording speed will also be twice the standard speed. Therefore, output terminal 4
The sound signal output from 1°42 is recorded on the tape at twice the standard speed.

In the above configuration, the features of the present invention will be explained below with reference to the flowchart shown in FIG. First, when started (step S1), in state S2, the disc playback section searches for the first song to be played on the disk 12, and enters a pause (-time stop) state at the beginning of that song.

Next, in step S3, the cassette tape recorder section is placed in a recording pause state, and then, in step 84, it is determined whether or not the function switch has selected the disc playback section. If the selection is made (YES), the disc playback unit is set to a standard speed mode (hereinafter referred to as standard speed mode) in step S5, and the cassette tape recorder unit is also set to standard speed mode in step S6. Set.

Further, if the function switch does not select the disc playback section in step S4 (No), step S4
In step S7, the disc playback section is set to a mode in which playback is performed at twice the standard speed (hereinafter referred to as double speed mode), and in step S8, the cassette tape recorder section is also set to double speed mode.

Thereafter, in step S9, the cassette tape recorder section runs the cassette tape in a recording state at the speed mode set in step S6 or step S8. However, at this time, since the disc 12 has not yet been played back, no signal is being recorded.

After this no-signal recording state is maintained for a period of time specified in step S10, step 81
At step 1, playback of the disc 12 is started, and the disc playback signal begins to be recorded on the cassette tape. In this case, disc playback continues until the interval between songs on the disc 12 is determined in step 812, that is, until the first song searched in step S2 ends.

Thereafter, in step S13, it is determined whether or not it is the last song, and if it is the last song (YES), step 814
Then, disc playback is stopped and step S1
At step 5, the running of the cassette tape is stopped and the process ends (step 816).

Also, in step 313, if it is not the last song (No)
In step 817, the disc playback unit searches for the beginning of the next song to be played and enters a pause state. Then, in step 818, it is determined whether or not it is the double speed mode. If it is not the double speed mode (No), a 4-second timer is started operating in step 819, and if it is the double speed mode (No>, the The second timer is started.

The 4-second timer and 2-second timer generate end signals when 4 seconds and 2 seconds have elapsed from the start of their operation, respectively.

Then, in step 821, it is determined that the timer operation has ended (YES>, the process returns to step S3.

Here, after the recording is started in step S9, the cassette tape continues to run in the standard speed mode or the double speed mode until the process returns to step S3 and the cassette tape recorder section enters the pause state. For this reason, step 8
At 17, the disc playback section enters a pause state and plays in standard speed mode for 4 seconds.

By holding the double speed mode for 2 seconds, unrecorded portions between songs are automatically generated on the cassette tape.

According to the configuration of the above embodiment, the disc playback section and the cassette tape recorder section are operated in double speed mode when the function switch does not select the disk playback section, so the function switch operates the radio reception section. With this option selected, the disc playback signal can be recorded on the cassette tape at high speed, making handling convenient for the user.

It should be noted that the present invention is not limited to the above-mentioned embodiments, and can be implemented with various modifications without departing from the gist thereof.

[Effects of the Invention] Therefore, as detailed above, according to the present invention, in a device in which a plurality of data playback units including a disc playback unit whose playback speed can be switched are selectively used with a function selection operator, the function selection By operating the disc playback unit at the highest playback speed when a data playback unit other than the disc playback unit is selected using the data controller and the disk playback unit is requested to play the disc, For example, while operating a data playback unit other than the disc playback unit,
It is possible to provide an extremely good data reproducing device that can promote multi-functionality such as high-speed recording of disc reproduction signals on tape or the like, and can be conveniently handled by the user.

[Brief explanation of the drawing]

FIG. 1 shows an embodiment of a data reproducing apparatus according to the present invention, and is a block circuit diagram showing the configuration of a disc reproducing section, and FIG. 2 is a flowchart for explaining the operation of the embodiment. 11... Disk playback mechanism section, 12... Disk,
13... Disc motor, 14... Disc table, 15... Optical pickup, 16... Pickup feed motor, 17.18... Current-voltage conversion amplifier circuit, 19... Broadband RF amplification Circuit, 20... Feedback circuit, 21... Analog amplifier circuit, 22... Servo control circuit, 23... Amplifier circuit, 24...
Feedback circuit, 25.26 drive circuit, 27... amplifier circuit,
28...Feedback circuit, 29...Drive circuit, 30...
Amplifying circuit, 31... Feedback circuit, 32... Drive circuit,
33... Phase locked loop circuit, 34... Digital signal processing circuit, 35... Crystal generator, 36... Clock generation circuit, 31... RAM. 38...D/A conversion circuit, 39.40...Amplification circuit, 41.42...Output terminal, 43...Playback speed control circuit, 44...Display circuit, 45...Synchronization control circuit,
46...Cassette tape recorder.

Claims (1)

[Claims] In the data reproducing device, the data reproducing device has a plurality of data reproducing units including a disc reproducing unit whose reproducing speed can be switched by changing the rotational speed of the disc, and selects and uses these plural data reproducing units with a function selection operator. When a data reproducing section other than the disc reproducing section is selected using a function selection operator and a request is made to the disc reproducing section to play a disc, the disc reproducing section is operated at the highest reproduction speed. A data reproducing device comprising: