CN1220204C - Disk drive for self adaptive controlled recording speed and its method - Google Patents
Disk drive for self adaptive controlled recording speed and its method Download PDFInfo
- Publication number
- CN1220204C CN1220204C CNB031487890A CN03148789A CN1220204C CN 1220204 C CN1220204 C CN 1220204C CN B031487890 A CNB031487890 A CN B031487890A CN 03148789 A CN03148789 A CN 03148789A CN 1220204 C CN1220204 C CN 1220204C
- Authority
- CN
- China
- Prior art keywords
- signal
- disk drive
- clock
- recording
- clock signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/20—Driving; Starting; Stopping; Control thereof
- G11B19/24—Arrangements for providing constant relative speed between record carrier and head
- G11B19/247—Arrangements for providing constant relative speed between record carrier and head using electrical means
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/20—Driving; Starting; Stopping; Control thereof
- G11B19/2009—Turntables, hubs and motors for disk drives; Mounting of motors in the drive
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/10009—Improvement or modification of read or write signals
- G11B20/10222—Improvement or modification of read or write signals clock-related aspects, e.g. phase or frequency adjustment or bit synchronisation
- G11B20/1024—Improvement or modification of read or write signals clock-related aspects, e.g. phase or frequency adjustment or bit synchronisation wherein a phase-locked loop [PLL] is used
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2537—Optical discs
- G11B2220/2545—CDs
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2537—Optical discs
- G11B2220/2562—DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Optical Recording Or Reproduction (AREA)
- Rotational Drive Of Disk (AREA)
Abstract
Provided are a disc drive which controls a recording speed to adapt to a transmission speed of a signal received from a channel receiver and a method for controlling the same. The disc drive includes a clock generator, a pickup unit, a recording processing unit, and a decoder. The clock generator generates a clock signal that is synchronized with a transmission speed of a received signal. The pickup unit records recording data corresponding to the received signal on the disc. The recording processing unit converts the received signal into the recording data by synchronizing with the clock signal generated from the clock generator and provides the recording data to the pickup unit. The decoder detects a specific signal capable of recognizing transmission speed of the received signal, provides the specific signal to the clock generator, and transmits the received signal to the recording processing unit. The clock generator generates the clock signal that is synchronized with the specific signal. Thus, it is not necessary that an additional medium is connected between the channel receiver and the disc drive.
Description
Technical field
The present invention relates to a kind of disk drive of adaptive control writing speed, and be particularly related to a kind of disk drive and method thereof of the transmission speed adaptive control writing speed according to received signal.
Background technology
Disk drive can reproduce data in the disc recording data or from dish.When the record received signal, no matter traditional disk drive is at a predetermined velocity at the disc recording received signal and the transmission speed of received signal.Yet, do not fix from the transmission speed of the signal of the channel receiver of for example set-top box output.This is because supply with the program of set-top box or the transmission speed that information provider can change data.
Thereby, may be different from the transmission speed of the signal of channel receiver output with the writing speed of disk drive.If at that rate, then disk drive can not normal recordings from the signal of channel receiver output.
In the prior art, a kind of medium is connected between channel receiver and the disk drive by additional, so that the disc recording in being loaded in disk drive is from the signal of channel receiver output.This medium is coordinated from the transmission speed of the signal of channel receiver output and the writing speed of disk drive.PC or can be used as medium as the high capacity memory of hard disk.
In the prior art, because medium must be connected between channel receiver and the disk drive by additional,, environment becomes complicated so being provided with task.In addition, for example error of transmission such as buffer underrun may take place, and is transferred to disk drive the medium then because be stored in from the signal of channel receiver output.If for example error of transmission such as buffer underrun takes place, the data that then are transferred to disk drive may be damaged.
Summary of the invention
The invention provides a kind of controlling recording speed to adapt to from the disk drive and the method thereof of the transmission speed of the signal of channel receiver output.
The present invention also provides a kind of controlling recording speed, thereby the additional agents that need not between channel receiver and disk drive can be normally in disk drive and the method thereof of disc recording from the signal of channel receiver output.
Control writing speed when the present invention also provides a kind of rotational speed of Control Shaft motor is with the disk drive and the method thereof of the transmission speed that adapts to received data.
According to one aspect of the present invention, a kind of disk drive in the disc recording data is provided, this disk drive comprises: clock generator is used to produce the transmission speed clock signal synchronous with received signal; The recording processing parts comprise: scrambler, be used for the clock signal that produces from this clock generator be record data synchronously with the conversion of signals that is received; With the recording impulse generator, be used to the corresponding recording impulse of record data that generates and change, and this recording impulse is offered the pick-up parts; With the pick-up parts, be used for synchronously writing down described recording impulse at dish with the clock signal that produces from clock generator.
This disk drive also comprises demoder, be used to detect the signal specific that to discern the received signal transmission speed, should detected signal specific offer clock generator, and this received signal is transferred to the recording processing parts, clock generator produces and this signal specific clock signal synchronous.This signal specific is a periodic signal.
These recording processing parts comprise one and are used for scrambler that received signal is encoded.This clock generator is made up of a phase-locked loop circuit.This disk drive also comprises a spindle motor and a clock signal that produces by the use clock generator that is used for rotating disc and comes the spindle motor driver part of the rotational speed of Control Shaft motor.
According to another aspect of the present invention, a kind of disk drive in the disc recording data is provided, this disk drive comprises: the recording processing parts, comprise: scrambler, be used to produce the transmission speed clock signal synchronous with received signal, and synchronously received signal be converted to record data with clock signal; With the recording impulse generator, be used to the corresponding recording impulse of record data that generates and change, and this recording impulse is offered the pick-up parts; With the pick-up parts, be used for synchronously writing down described recording impulse at dish with described clock signal.
According to another aspect of the present invention, a kind of control can be in the method for the writing speed of the disk drive of disc recording data, and this method comprises: produce the transmission speed clock signal synchronous with received signal; Synchronously received signal is converted to the record data that to be recorded in the dish with this clock signal; Produce the corresponding recording impulse of record data with conversion; With with clock signal synchronously at the described recording impulse of disc recording.
This clocking comprises: detection can be discerned the signal specific of received signal transmission speed, and produces and this signal specific clock signal synchronous.This method also comprises: by controlling synchronously the rotational speed of the spindle motor that is used for rotating disc with this clock signal.
Description of drawings
By the reference accompanying drawing exemplary embodiments is described in detail, above-mentioned and its feature of the present invention and advantage will be more readily apparent from, wherein:
Fig. 1 is the block scheme according to the disk drive of a kind of adaptive control writing speed of one embodiment of the invention; With
Fig. 2 shows the process flow diagram according to the method for the writing speed of a kind of console panel driver of one embodiment of the invention.
Embodiment
Prove absolutely the present invention now with reference to accompanying drawing, wherein show the preferred embodiments of the present invention.
Fig. 1 is the block scheme according to the disk drive of a kind of adaptive control writing speed of one embodiment of the invention.With reference to figure 1, disk drive according to the present invention comprises dish 101, pick-up parts 102, demoder 103, recording processing parts 104, clock generator 107, spindle motor driver part 108 and spindle motor 109.Recording processing parts 104 comprise recording impulse generator 106 and scrambler 105.
Dish 101 is for example CD of wherein recorded data or the medium of DVD.
Pick-up parts 102 pick up recorded data by using the laser diode (not shown) from coiling 101, and output is converted to the radiofrequency signal of electric signal or launches light to coil 101 identifying recording layers.
The signal that demoder 103 decodings are received.The signal that provides this to receive by the channel receiver of for example set-top box etc.Demoder 103 detects signal specific from the signal that receives.As this signal specific of periodic signal, can discern the transmission speed of received signal.For example, but this signal specific synchronizing signal or any other prearranged signals.
For example, if synchronizing signal is a signal specific, then demoder 103 detects the synchronizing signal that is included in the signal that is received with as signal specific.If other periodic signal beyond the synchronizing signal is a signal specific, then demoder 103 detects the periodic signal that is included in the received signal with as signal specific.When manufacturing system, can determine this signal specific.
Demoder 103 is transferred to clock generator 107 with detected signal specific, and will not be that the received signal of signal specific is transferred to recording processing parts 104.
The conversion of signals that recording processing parts 104 will come from demoder 103 is can be by the record data of pick-up parts 102 identifications.Thereby recording processing parts 104 comprise scrambler 105 and recording impulse generator 106.
The conversion of signals that scrambler 105 will come from demoder 103 transmission is record data.But one of conversion method classic method of scrambler 105.Here, scrambler 105 is by encoding to data synchronously with the clock signal that is produced by clock generator 107.Therefore, the record data from scrambler 105 outputs have and the synchronous cycle of clock signal that is produced by clock generator 107.
Recording impulse generator 106 produces recording impulse according to the record data that come from scrambler 105.Then, the recording impulse with this generation is transferred to pick-up parts 102.Therefore, pick-up parts 102 according to the synchronous recording impulse that has produced of the transmission speed of received signal at dish 101 identifying recording layers.
Clock generator 107 produces and the signal specific clock signal synchronous that comes from demoder 103.This clock signal is used for the writing speed of console panel driver.Clock generator 107 can be a known phaselocked loop (PLL) circuit.To offer scrambler 105 and spindle motor driver part 108 by the clock signal that clock generator 107 produces.
Spindle motor driver part 108 will be by using as rotational speed operation clock signal and that come Control Shaft motor 109 by the clock signal that clock generator 107 produces.Spindle motor 109 is driven and rotating disc 101 by spindle motor driver part 108.
In this embodiment, clock generator 107 is in the outside of scrambler 105.Yet clock generator 107 can be contained in the scrambler 105.In this case, the signal specific clocking that scrambler 105 bases receive from demoder 103, and by synchronously signal being encoded with the clocking that receives from demoder 103.
Fig. 2 shows the process flow diagram according to the method for the writing speed of a kind of console panel driver of one embodiment of the invention.
At first, whether judge from channel receiver etc. and received the signal (step 201) that will be recorded to the dish.
If judge in step 201, to have received signal, then in received signal, detect a signal specific (step 202).This is a prearranged signals with the signal specific that is detected.For example, if synchronizing signal is pre this signal specific, then in step 202, detect the synchronizing signal be included in the signal that is received with as signal specific.
The signal specific clock signal synchronous (step 203) that has produced and detected.The front has illustrated the method for clocking with reference to the clock signal 107 of figure 1.
The received signal synchronous with the clock signal that produces is encoded and record, and by using the rotational speed of this clock signal Control Shaft motor 109.
As mentioned above, the writing speed of foundation disk drive control data of the present invention and the rotational speed of spindle motor can normally write down the record data that receive from channel receiver to adapt to the transmission speed of received data thereby need not to connect additional agents between channel receiver and disk drive in dish.In addition, any attachment of a task that produces because of medium not necessarily and can avoid taking place for example error of transmission such as buffer underrun.
Although the present invention specifically illustrates and describes with reference to exemplary embodiments, it will be understood by those skilled in the art that the variation that within the spirit and scope of the present invention that do not break away from aforementioned claim definition, can do on various forms and the details.
The application requires the right of priority of on September 7th, 2002 to the korean patent application 2002-54027 of Korea S Department of Intellectual Property proposition, is incorporated herein its whole disclosures as a reference.
Claims (16)
1. disk drive in the disc recording data, this disk drive comprises:
Clock generator is used to produce the transmission speed clock signal synchronous with received signal;
The recording processing parts comprise: scrambler, be used for the clock signal that produces from this clock generator be record data synchronously with the conversion of signals that is received; With the recording impulse generator, be used to the corresponding recording impulse of record data that generates and change, and this recording impulse is offered the pick-up parts; With
The pick-up parts are used for synchronously writing down described recording impulse at dish with the clock signal that produces from clock generator.
2. according to the disk drive of claim 1, wherein this disk drive also comprises demoder, be used to detect the signal specific that to discern the received signal transmission speed, should detected signal specific offer clock generator, and this received signal is transferred to the recording processing parts, and clock generator produces and this signal specific clock signal synchronous.
3. according to the disk drive of claim 2, wherein this signal specific is a periodic signal.
4. according to the disk drive of claim 1, wherein these recording processing parts comprise and are used for scrambler that received signal is encoded.
5. according to the disk drive of claim 1, wherein this clock generator is made up of phase-locked loop circuit.
6. according to the disk drive of claim 1, wherein this disk drive also comprises:
Spindle motor is used for rotating disc; With
The spindle motor driver part is used for the rotational speed of coming the Control Shaft motor by the clock signal of using clock generator to produce.
7. according to the disk drive of claim 2, wherein this disk drive also comprises:
Spindle motor is used for rotating disc; With
The spindle motor driver part is used for the rotational speed of coming the Control Shaft motor by the clock signal of using clock generator to produce.
8. disk drive in the disc recording data, this disk drive comprises:
The recording processing parts comprise:
Scrambler is used to produce the transmission speed clock signal synchronous with received signal, and and the time
The clock signal Synchronization received signal is converted to record data; With
The recording impulse generator is used to the corresponding recording impulse of record data that generates and change, and this recording impulse is offered the pick-up parts; And
The pick-up parts are used for synchronously writing down described recording impulse at dish with described clock signal.
9. disk drive according to Claim 8, wherein this disk drive also comprises demoder, is used to detect the signal specific that can discern the received signal transmission speed and this signal specific is transferred to described recording processing parts.
10. according to the disk drive of claim 9, wherein this signal specific is a periodic signal.
11. according to the disk drive of claim 9, wherein this disk drive also comprises:
Spindle motor is used for rotating disc; With
The spindle motor driver part, be used for by with this signal specific rotational speed of Control Shaft motor synchronously.
12. according to the disk drive of claim 10, wherein this disk drive also comprises:
Spindle motor is used for rotating disc; With
The spindle motor driver part, be used for by with this signal specific rotational speed of Control Shaft motor synchronously.
13. a control can be in the method for the writing speed of the disk drive of disc recording data, this method comprises:
Produce transmission speed clock signal synchronous with received signal;
Synchronously received signal is converted to the record data that to be recorded in the dish with this clock signal;
Produce the corresponding recording impulse of record data with conversion; With
With clock signal synchronously at the described recording impulse of disc recording.
14. according to the method for claim 13, wherein this clocking comprises: detection can be discerned the signal specific of the transmission speed of received signal; With
Produce and this signal specific clock signal synchronous.
15. according to the method for claim 14, wherein this signal specific is a periodic signal.
16. according to the method for claim 13, wherein this method also comprises: by controlling the rotational speed of the spindle motor that is used for rotating disc synchronously with this clock signal.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2002-0054027A KR100480617B1 (en) | 2002-09-07 | 2002-09-07 | Disc drive for controlling adaptively recording speed and recording speed controlling method |
| KR54027/2002 | 2002-09-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1480938A CN1480938A (en) | 2004-03-10 |
| CN1220204C true CN1220204C (en) | 2005-09-21 |
Family
ID=32026056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031487890A Expired - Fee Related CN1220204C (en) | 2002-09-07 | 2003-06-26 | Disk drive for self adaptive controlled recording speed and its method |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR100480617B1 (en) |
| CN (1) | CN1220204C (en) |
| TW (1) | TWI220517B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03161826A (en) * | 1989-11-20 | 1991-07-11 | Sharp Corp | Disk type recording and reproducing device |
| JP3192654B2 (en) * | 1990-11-28 | 2001-07-30 | 株式会社東芝 | Disk writing device |
| JPH0895711A (en) * | 1994-09-22 | 1996-04-12 | Toshiba Corp | Cd-rom disk reproducing device |
| KR100235326B1 (en) * | 1996-10-19 | 2000-01-15 | 구자홍 | Multi-rate optical disc recording method and device |
| KR100303202B1 (en) * | 1996-12-13 | 2001-11-22 | 구자홍 | Method of recording/replaying speed variable-type optical disk and device thereof |
-
2002
- 2002-09-07 KR KR10-2002-0054027A patent/KR100480617B1/en not_active IP Right Cessation
-
2003
- 2003-04-30 TW TW092110113A patent/TWI220517B/en not_active IP Right Cessation
- 2003-06-26 CN CNB031487890A patent/CN1220204C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| TWI220517B (en) | 2004-08-21 |
| KR100480617B1 (en) | 2005-03-31 |
| KR20040022767A (en) | 2004-03-18 |
| TW200404275A (en) | 2004-03-16 |
| CN1480938A (en) | 2004-03-10 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: TOSHIBA SAMSUNG STORAGE TECHNO Free format text: FORMER OWNER: SAMSUNG ELECTRONICS CO., LTD. Effective date: 20140722 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140722 Address after: Gyeonggi Do, South Korea Patentee after: Toshiba Samsung Storage Technology Korea Co., Address before: Gyeonggi Do, South Korea Patentee before: Samsung Electronics Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050921 Termination date: 20160626 |
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| CF01 | Termination of patent right due to non-payment of annual fee |