CN1099508A - CD scanning method is CD player - Google Patents

Abstract

The invention relates to a CD player, in particular to a passage of the CD player which can selectively cause that a plurality of CDs arranged in the CD player plays. The CD player of the invention has the CD scanning method that when the CD scanning mode is set the CDs arranged in the device are sequentially changed, the specified part is caused to play, therefore, the category of the CDs is known by the user. The invention has the effects that a plurality of CDs can be changed, the main part of the CDs to be changed can be checked in the specified time, therefore the effects of CD contents arranged in the device can be estimated rapidly.

Description

CD scanning method is CD player

The present invention relates to compact disk audio player, particularly can make to be contained in the optionally passage of the compact disk audio player of playback of many pieces of interior CDs of compact disk audio player.

The CD passage of compact disk audio player is to be used for searching the device that uses desirable CD and make its playback among being contained in many pieces of CDs in optical disk cartridge or the CD groove (below, be called optical disk cartridge for example).As mentioned above, the present invention relates to can be rapidly and easily from the optical disk cartridge of compact disk audio player, find out the CD scanning method of the compact disk audio player that uses desirable CD with CD passage.

Produce now, have the CD passage that from many pieces of CDs that are contained in CD, to select to use desirable CD and make selected CD playback in the compact disk phonograph of sale.

That is, above-mentioned CD passage can be changed the desirable CD of user, and makes its playback.

On the other hand, the method as being used for understanding the content of recording in the CD thinking playback (lyrics etc.) has the internal check function.Recorded under the situation of how first song in a CD, the definite part of song of resetting respectively in official hour is so that make the user understand the function of the content of recording of a CD.

, when carrying out internal check, though can know the content of recording in the CD,,, then can not know the disc types of packing into for the CD passage that uses many pieces of CDs.Therefore, wonder the kind time-like of the CD in the CD passage that is contained in as the optical disk cartridge, after selecting CD, have only, just can know the kind of CD by carrying out internal check (identical) repeatedly for several times with the cd number of adorning in the optical disk cartridge.

The number of times that select CD like this, carries out internal check should equate with cd number, therefore inconvenience.

At the EP(European patent) 0265167(Magazine-housed disk Player) in (putting cartridge optical disk phonograph) patent, in order to solve the problem of above-mentioned inconvenience, introduced and a kind ofly can allow the user understand easily technology in the optical disk cartridge that is contained in the dish machine about the content information of CD etc.That is to say, read about behind the content informations such as CD in the optical disk cartridge, store in the storer, by display device, the above-mentioned information about CD of storing in the storer is shown again from the stored position of having set.

But the problem in the above-mentioned EP0265167 patent is the device that needs to know about many information of CD, for example identification marking reader.Recognize the device of information, the storer of canned data, and the CRT of display message etc., make the volume of device become big, cost increases.

Therefore, the present invention puts forward in order to address the above problem, a kind of like this CD scanning of compact disk audio player method that provides is provided, this method can make established part (for example being recorded in the beginning part of the melody in the CD etc.) playback in certain hour (for example 10 seconds) that is contained in each CD in the CD, thereby can find the desirable CD of user rapidly and easily.

With what achieve the above object is that the feature of CD scanning method of the compact disk audio player of the present invention of aim is, after setting the CD scanning pattern, just changes the CD that is contained in the device successively, makes the established part playback, thereby uses the kind of advancing can understand the light rib.

Fig. 1 is the block diagram of light rib phonograph of using the scan method of CD of the present invention.

Fig. 2 is the process flow diagram of the CD scanning method of compact disk audio player of the present invention.

The label representative of using in the accompanying drawings is as lower member

1 ... optical disk cartridge

2 ... key matrix

3 ... microprocessor

4 ... rotating disk

5 ... CD

6 ... motor driver

7 ... motor

8 ... acoustic pickup

9 ... amplifier

10 ... digital signal processor

12 ... gear train

13 ... D/A converter

14 ... output amplifier

15 ... loudspeaker

Below, say with reference to the accompanying drawings and describe bright the present invention in detail.

In Fig. 1, several pieces of CDs are housed in the optical disk cartridge 1, by operating key matrix 2, according to the control signal of microcomputer 3 outputs, CD installs on the rotating disk 4.Suppose and want to change CD, as long as operating key battle array key matrix 2, on remember that CD 5 is just gone in the optical disk cartridge 1, and the CD in the selected light box 1 is installed on the rotating disk 4.Suppose and want to change CD, as long as operating key matrix 2, on remember that CD 5 just is loaded in the optical disk cartridge 1, and the CD in the selected optical disk cartridge 1 is installed on the rotating disk 4.Then, want to make CD 5 playbacks, as long as operating key matrix 2, microprocessor 3 is just to motor driver 6 output control signals.Above-mentioned motor driver 6 drives (rotation) motor 7 according to the control signal of input, and rotating disk 4 just rotates along with the rotation of motor, so the CD 5 that is contained on the rotating disk 4 just rotates, when CD 5 rotated, acoustic pickup 8 is the digital signal of reading and recording on CD 5 just, and be defeated by amplifier 9.

Above-mentioned amplifier 9 is exported to digital signal processor 10 after the digital signal of input is amplified.Digital signal processor 10 is defeated by/mode converter 13 and microprocessor 3 after the digital signal processing.Microprocessor 3 is controlled focusing/tracking control unit 11 according to the signal of input.Focusing/tracking control unit 11 is according to the control signal of input, drive transmission device 12.Gear train 12 drives acoustic pickup 8, and focusing and tracking are controlled.D/A converter 13 will be exported after digital signal 10 digital signals change simulating signal into.Above-mentioned simulation number after output amplifier 14 amplifies, by loudspeaker 15 to outside output sound.

Foregoing is identical with the action of general compact disk audio player.

After, the user is in order to judge the kind that is contained in the CD in the optical disk cartridge 1, by operating key matrix 2, microprocessor 3 is just controlled compact disk audio player and is changed the dish that is contained in the optical disk cartridge 1 successively, makes the established part playback, thereby can understand the kind of CD.

Below, the process flow diagram of the CD scanning method of the compact disk audio player of the present invention that reference is shown in Figure 2 describes the above.

At first, microprocessor 3 judges whether to be CD scanning pattern (S101), if judged result is not the CD scanning pattern, accepts the pattern (S200) of row by the keyboard signal decision of input.If the user wants to understand what the kind (or content) that is contained in the CD in the optical disk cartridge 1 is, if operating key matrix 2, just microprocessor 3 judges it is the CD scanning pattern, so make the CD playback.That is to say that microprocessor 3 makes CD 5 playbacks that are contained on the rotating disk 4 to motor driver 6 and digital signal processor 10 and gathering/tracking control unit 11 output control signals.At this moment, the playback action promptly can be carried out playback from the beginning part of CD, also can partly carry out playback from the centre.

But, during from the playback of CD switch sections, if disk recording be music the time owing to only broadcast the accompaniment melody, so preferably begin playback from about part through 1 minute (playing speed).In the playback process, little processing 3 still continues to judge whether to be CD scanning pattern (S103), judges whether to have passed through official hour (being set at about 10 seconds) simultaneously (S104).

Here, (about 10 seconds) are the time that can know the kind of CD the stipulated time.Usually, because what record is 1 people song of singing or with a series of music, therefore, the user only listens the part of CD, just can judge it is which CD at an easy rate in a CD.

In above-mentioned S103, S104 stage, if when the result who judges is not the CD scanning pattern, just the CD that microprocessor 3 controls are contained on the rotating disk 4 continues playback.That is to say that if the desirable CD of the CD person of being to use of playback now or wants to continue the CD listened, the user can operating key matrix 2, removes the CD scanning pattern, makes CD 5 continue playbacks.

At this moment, playback promptly can allow above-mentioned tone playing state continuously playback go down, also can be from switch playback again.

At above-mentioned S103.The S104 stage is if judged result is to have passed through official hour in the CD scanning pattern, just then microprocessor 3 makes playback interrupt (S105) to motor driver 6 and word signal processor 10 and focusing/tracking control unit 11 output control signals.So 3 pairs of microprocessors are contained in CD in the optical disk cartridge 1 whether complete inspection is crossed judges (S106).Judged result will be if not complete inspection then will be contained in the CD 5 same CD exchanges that are contained in the CD 1 on the rotating disk 4.Then, make the CD playback at the appointed time that is contained on the rotating disk 4 repeatedly, if judge that the result of (S106) is the complete inspection of above-mentioned CD, just come to an end.

As mentioned above, the present invention can check the pith of the CD of replacing at the appointed time, is contained in the content of the CD in the device thereby can form a prompt judgement easily.

Particularly, in the present invention,, also be applicable to situation about constituting, can achieve the goal equally by the CD draw-in groove though only narrated the situation that the CD passage is made of optical disk cartridge.That is, the invention is not restricted to Fig. 1, as long as can change piece CD and enter the device of playback pattern.

More than illustrated than specific embodiment, but in not exceeding scope of the present invention, can implement multiple conversion.

Claims (9)

1, a kind of CD scanning method of compact disk audio player is characterised in that: when setting the CD scanning pattern, can change the CD that is contained in the device successively, and make the established part playback, thereby the user can know the kind of this CD.

2, the CD scanning method of compact disk audio player according to claim 1 is characterized in that: the CD that is contained in the device is more than two pieces at least.

3, the CD scanning method of compact disk audio player according to claim 1 is characterized by: regulation CD playback part can be the certain interval that begins from the content the beginning part of recording.

4, the CD scanning method of the described compact disk audio player of claim 1 is characterized in that: the CD playback of regulation part can be certain interval that the center section from the content of recording begins.

5, according to the CD scanning method of claim 3 or 4 described compact disk audio players, it is characterized by: certain interval person of being to use of light playback can know the time of the content of recording in the CD.

6, the CD scanning method of compact disk audio player according to claim 1 is characterized in that: in CD playback process, if remove the CD scanning function, can make the CD normal playback that is contained on the rotating disk.

7, the CD scanning method of compact disk audio player according to claim 6 is characterized in that: when finding CD, the user can remove the CD scanning function.

8, the CD scanning method of compact disk audio player according to claim 6 is characterized in that: normal playback can be from being contained in the CD switch family sound on the rotating disk.

9, the CD scanning method of compact disk audio player according to claim 6 is characterized in that: normal playback can be from the partial continuous ground playback of when scanning playback.

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