CN1037719C - Disc time search method using jog dial - Google Patents
Disc time search method using jog dial Download PDFInfo
- Publication number
- CN1037719C CN1037719C CN93105724A CN93105724A CN1037719C CN 1037719 C CN1037719 C CN 1037719C CN 93105724 A CN93105724 A CN 93105724A CN 93105724 A CN93105724 A CN 93105724A CN 1037719 C CN1037719 C CN 1037719C
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- China
- Prior art keywords
- jog dial
- dish
- time
- disk
- search
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- Input From Keyboards Or The Like (AREA)
Abstract
The present invention relates to a disk time searching method of a jog dial disk. When a disk of a karaoke player is a constant linear speed disk, a shuttle ring rotates so as to complete the shuttle function, and a jog dial disk rotates to implement time search. The present invention comprises the steps: the disk is judged to be a constant angular speed disk or a constant linear speed disk; the jog dial disk rotates to detect and display the time corresponding to the disk position; the jog dial disk rotates to increase or decrease the time corresponding to the disk position; once the jog dial disk stops rotating, the disk position corresponding to the final set time is searched; the disk starts replaying at normal speed from the searched position, one jog dial disk is only used for implementing the time search on the constant linear speed disk, and substitutes for a plurality of keys.
Description
The present invention relates to utilize the time search method of the dish that jog dial (jogdial) finishes, wherein, when a dish playback time with constant linear velocity (CLV), carry out shuttle functions by rotating the ring that shuttles back and forth, come the execution time function of search by rotating a jog dial, carry out the slow-motion function to substitute.
In a common dish with Constant Angular Velocity (CAV), a frame (image) is recorded among the track, and, in this dish, if the rotation jog dial, picture at a slow speed so, a still frame or an instantaneous operation can realize.
Fig. 1 is a process flow diagram, and it has illustrated the method for carrying out the slow-motion function in a dish with Constant Angular Velocity, in step 101, make a judgement, is the dish of a Constant Angular Velocity or the dish of a constant linear velocity to judge the dish of installing now.Next judgement is whether to rotate jog dial (step 102) in order to carry out the slow-motion function
If find to be rotated in the described jog dial step in front, so,, carry out the slow-motion function by rotating this jog dial in step 103.
In step 104, to make the judgement whether rotation of dial is stopped then, if jog dial to be ready being stopped, when the rotation that slow-motion function so will be carried out jog dial always stops till.If the rotation of this jog dial stops, so in step 105 with normal speed playback.
In addition, if find that in step 101 dish of installing now is the dish of a constant linear velocity, so, in step 107, to make a judgement, to judge whether rotated jog dial in order to carry out the slow-motion function.During this time, if in step 107, rotate jog dial, in step 108, do not have function to be performed, and when jog dial is not rotated, can in step 109, carry out normal running so.
In other words, the dish of constant linear velocity writes down with constant linear velocity, therefore, and image of each track record in the track at penetralia place, and in the track at most external place, three images of each track record.
So, in the dish of constant linear velocity, can not carry out the slow-motion function.
Provide the time search function to replace the slow-motion function for the dish of constant linear velocity.This just means and utilizes the time search function, if indicate with the keyboard of telepilot or main frame a desired time position on dish, finish a jump with the time location of indication on dish, begin from this indicated position then to carry out playback with normal speed.
As want the execution time function of search, then can utilize a time search key to come search pattern Time Created, then by following the time location that this key then can be indicated desired jump continuously.So, a time search key that is used for the execution time search will be pressed, and so, will press a plurality of keys in order to carry out a time search, and this is pretty troublesome.The place non-technical personnel easily causes the error running of this device.
In addition, BrP GB2,236,007 have disclosed following technology.The information measuring point is along the radial direction of video disc high-speed mobile forward.Like this, can detect the position that records desired information.In other words, can be calculated such pulse, this pulse mobile becomes sharing proportion with one, the joint of a rotation (joint Khob) for example, and the value of being counted is used to determine to read a displacement.So, according to this displacement, information is read a high-speed mobile, but is not the time search that is used for a constant linear speed disc.
The present invention is the defective that will overcome in the above-mentioned ordinary skill.
The objective of the invention is to provide a kind of time search method that utilizes the dish that jog dial finishes, wherein, the time that on the dish of a constant linear velocity, has each frame of record, utilize jog dial can indicate the desirable time, and search this dish and go up indicated position, like this, utilize single jog dial rather than a plurality of key to become possibility, therefore provide convenience to the user with regard to the time search that makes dish.
Another object of the present invention is that the method for utilizing a jog dial that is installed on the optical disc apparatus to finish the time search of dish will be provided, wherein, be installed in the time of will automatically judging on the phonograph is Constant Angular Velocity dish or constant linear velocity dish, if the Constant Angular Velocity dish, jog dial just is used to carry out the slow-motion function, if the constant linear velocity dish, jog dial then is used for the execution time search, like this, needn't increase the hardware of separation, thereby reduce cost.
In order to achieve the above object, according to the present invention, utilize to be installed in the method that a jog dial on the optical disc apparatus finishes the time search of dish and to may further comprise the steps: judge that the dish that is installed on the phonograph is constant linear velocity dish or Constant Angular Velocity dish; According to judge this dish in determining step is that the Constant Angular Velocity dish is then carried out the slow-motion function by the rotation jog dial; According to judge this dish in determining step is that the constant linear velocity dish then comes the execution time function of search by the rotation jog dial.
Can make purpose of the present invention and advantage thereof become more obvious by the preferred embodiment that invention will be described in detail with reference to the attached drawing.
Fig. 1 is one and is used to utilize a jog dial to control the process flow diagram of a common dish phonograph.
Fig. 2 be an expression according to the present invention, utilize a jog dial to carry out the calcspar of the time search of dish.
Fig. 3 is a process flow diagram, has illustrated according to the present invention, utilizes the embodiment of the method for the time search that a jog dial coils.
Fig. 2 is a calcspar, and it understands in brief according to a circuit of the present invention, is used to utilize the method for the time search that a jog dial coils.
A dish 10 utilizes the Spindle Motor rotation, and dish 10 can be a Constant Angular Velocity dish, maybe can be a constant linear velocity dish.
A pick-up head 30, it reads information on the dish in the mode of photoelectricity, and it has an output terminal, and this end is connected on a radio frequency (RF) amplifier 40, and this RF amplifier 40 makes by pick-up head 30 detected feeble signals and is amplified.
Described pick-up head 30 comprises a laser diode and an objective lens, and its laser beam radiation to be to receive and to analyze institute's beam reflected, detects the existence of data thus or does not exist and such as tracking error and the such error of focusing error.
The output terminal of radio frequency amplifier 40 is connected on the signal processor 50, and this signal processor will also be finished the error correction from the signal of RF amplifier 40 rectification and being separated in addition.The output terminal of signal processor 50 is connected on the demultiplexer 60, it always isolates essential signal (for example under the situation of constant linear velocity dish, the position time of the dish that is in that the rotation by jog dial obtains) in the signal of signal processor 50.The output terminal of demultiplexer 60 is connected on the microprocessor 70.Another input end of microprocessor 70 is connected on key input part 100, and this key input section 100 comprises multiple key, shuttle back and forth a ring and a jog dial.First output terminal of this microprocessor 70 is connected to servo segment 80, the second output terminals and is connected to display part 90, and the instruction and the running status of these 90 display key importations 100, display part, key input part 100 also comprise a telepilot.
Simultaneously, described servo segment 80 also is connected on the signal processor 50, and this servo segment 80 receives from the error correction signal of signal processor 50 with from the control signal of microprocessor 70.Like this, this servo segment is carried out and is followed the tracks of and focus on to search for the time location of desired dish, and control bundle goes to read desired information thus.
Fig. 3 is a process flow diagram, has illustrated according to the present invention, utilizes the time search of the dish that a jog dial carries out.
The time method that is used for the search dish comprises the steps: to judge that being installed in the dish put on the phonograph of dish is Constant Angular Velocity dish or constant linear velocity dish (301); If judge this dish is a Constant Angular Velocity dish, then utilizes jog dial to carry out the slow-motion function; If judge this dish is a constant linear velocity dish, then utilizes jog dial to come the execution time function of search.
If judge that in step 301 this dish is a constant linear velocity dish, comprises following operation steps so: whether judge jog dial by user's rotation (302); Be rotated (303) if judge jog dial, then detect the pairing time of position of present residing dish, and it is presented at the display part; Calculate the time (304) that will increase or reduce according to the tropometer of jog dial; With time of being calculated in the display part (305) go up and show and judge whether the rotation of jog dial stops (306); As long as this jog dial calculates and shows this time once being rotated,, demonstrate time (307) in the display part by the final indication of jog dial in case find that jog dial stops the rotation; Search is corresponding to the position (308) of the dish of this final instruction time; After position, begin with normal speed reset (309) from this point that searches according to indicated time search dish; If in step 302,, then carry out normal operation according to not finding that jog dial is rotated.
If find it is a Constant Angular Velocity dish in step 301, it is a prior art so, and its operation may further comprise the steps: judge and whether rotate this jog dial (311) by the user; Rotate jog dial in case judge the user, then can carry out slow-motion function (312) by the rotation jog dial; Whether the rotation of judging jog dial stops (313); In a single day only be rotated and then carry out the slow-motion function, and find that jog dial stops, then carry out reset (314) with normal speed at jog dial; If in step 311, do not find jog dial at all, then carry out normal operation (315) in rotation.
In the present invention of above-mentioned formation, in step 301, make a judgement, being installed in dish with judgement, to put on the phonograph dish be Constant Angular Velocity dish or constant linear velocity dish.If finding this dish is a constant linear velocity dish, so, make a judgement, whether be rotated to judge the jog dial that in step 302, is installed on the key input section 100, at this moment, this jog dial is rotated by the user.
If find that in step 302 this jog dial is rotated, carry out detection so in the step 303, and the detected time is shown on display part 90 time of existing dish position.Execution in step 304 is with the rotation corresponding time of calculating with jog dial then.In other words, if jog dial rotates with direction forward, the time just is increased so; If jog dial is set so and is reduced for the time of each frame with opposite direction rotation.(original text is detected).
In step 305, the calculated time relevant with the rotation of jog dial is displayed on display part 90, then, judges in step 306 rotation that whether has been stopped jog dial by the user.
In this case, if find that jog dial rotates, this system turns back to step 304 so, is stopped up to jog dial.Then, calculate time of being set by jog dial it is presented at display part 90, this action repeats.If find that in step 306 rotation of jog dial is stopped, so, in step 307, will be presented at display part 90 by the final time that jog dial sets, so, search is corresponding to the position of the dish of the time of described last setting in step 308.After the execution of step 308, reading of pick-up 30 a little moves on to corresponding position, begins to reset with normal speed from this position of reading a little.
In other words, microprocessor 70 receives time of being set by jog dial and from time that is used for existing dish position (wanting searched dish position) of demultiplexer 60.Then microprocessor 70 relatively these two groups of signals and make a judgement analyzing them to judge the position of the dish that will jump to, promptly to be positioned at the place ahead or the rear of present position by the position that pick-up reads.Carry out to focus on then reading the data on the dish, and judge whether it is the position of setting.Utilize motor 20 and tracking coil (not shown) will read the position that a little moves on to the time of setting, begin from the position of this setting to carry out and reset with normal speed.
According to above-mentioned the present invention, do not put in the phonograph at one with the laser disk of number storage, if use a Constant Angular Velocity dish, then jog dial is used to carry out normal slow-motion function; If what use is a constant linear velocity dish, this jog dial is used for the time corresponding dish position at full speed searching for and set.Owing to do not need other hardware, therefore, value-added content of product increases; And, because the time search of dish is to replace a plurality of keys with an independent jog dial to finish, so a facility is provided and has improved the performance of product.
Claims (2)
1, a kind of use is installed in the time search method of the dish that the jog dial on the optical disc apparatus carries out, and may further comprise the steps:
Judging and being installed in the dish put on the phonograph of dish is a Constant Angular Velocity dish or a constant linear velocity dish;
In case determine it is a constant linear velocity dish, then utilize the rotation of described jog dial to come the execution time function of search;
In case determine it is a Constant Angular Velocity dish, then utilize the rotation of described jog dial to carry out the slow-motion function.
2, the dish time search method that carries out of use jog dial according to claim 1, wherein, described method is further comprising the steps of:
Utilize detection of rotation jog dial and corresponding time of existing dish position and show the said time;
Rotate with direction forward in case find described jog dial, then increase the time; In case find that described jog dial with opposite direction rotation, then reduces the time, and shows the time corresponding to each frame.
In case find that jog dial is stopped, then the position of search and the final corresponding dish of setting of time; And
Begin to carry out playback from the position of being searched for normal speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93105724A CN1037719C (en) | 1993-04-17 | 1993-04-17 | Disc time search method using jog dial |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93105724A CN1037719C (en) | 1993-04-17 | 1993-04-17 | Disc time search method using jog dial |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1093824A CN1093824A (en) | 1994-10-19 |
| CN1037719C true CN1037719C (en) | 1998-03-11 |
Family
ID=4985869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN93105724A Expired - Fee Related CN1037719C (en) | 1993-04-17 | 1993-04-17 | Disc time search method using jog dial |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1037719C (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1032256A (en) * | 1987-09-23 | 1989-04-05 | 河北省公安厅科学技术研究所 | Searcher for recorded magnetic tape |
| CN2084227U (en) * | 1991-03-02 | 1991-09-04 | 朱斌 | Auto-searching and reading and writing type film disk driver |
-
1993
- 1993-04-17 CN CN93105724A patent/CN1037719C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1032256A (en) * | 1987-09-23 | 1989-04-05 | 河北省公安厅科学技术研究所 | Searcher for recorded magnetic tape |
| CN2084227U (en) * | 1991-03-02 | 1991-09-04 | 朱斌 | Auto-searching and reading and writing type film disk driver |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1093824A (en) | 1994-10-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 19980311 |