CN1179597A - Electronic apparatus and removable cartridge having recording/reproduction mechanism portion - Google Patents
Electronic apparatus and removable cartridge having recording/reproduction mechanism portion Download PDFInfo
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- CN1179597A CN1179597A CN 97120554 CN97120554A CN1179597A CN 1179597 A CN1179597 A CN 1179597A CN 97120554 CN97120554 CN 97120554 CN 97120554 A CN97120554 A CN 97120554A CN 1179597 A CN1179597 A CN 1179597A
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- tape
- rotary head
- head cylinder
- tape cassete
- recoding
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Abstract
A cartridge can be loaded and unloaded in a video camera body. A cartridge case of the cartridge has therein a recording/reproduction mechanism unit including a pair of reel bases, tape reels supported by the reel bases, respectively and a rotating head drum around which a magnetic tape is wound for achieving recording and reproduction actions. The cartridge case is provided with an I/O terminal substrate to be electrically connected to the video camera body. The magnetic tape extracted from the tape reel is wound around the rotating head drum, and as a result they are integrated with one another.
Description
The present invention relates to a kind of electronic equipment and dismountable tape cassete with recoding/reproduction mechanism, this tape cassete is preferably used in video camera and other similar popular equipment, relate in particular to a kind of electronic equipment and tape cassete, its mechanical part can be simplified greatly, and can reduce the requirement to the dimensional accuracy of recoding/reproduction mechanism.
In the recoding/reproduction mechanism of existing extensive employing, tape is in a spiral manner in rotary head cylinder, and record the information on the tape by running up of tape and rotary head cylinder, the scanning of this information is reproduced the information of noting by rotary head cylinder.
In above-mentioned recoding/reproduction mechanism, tape rotary head cylinder loading and unloading relatively.Usually, in cassette-cartridge system, tape is on tep reel.When the information of noting on the tape was reproduced with the distinct device of identical standard, recoding/reproduction mechanism cooperated with miscellaneous equipment and can obtain appropriate signal like this.For this reason, recoding/reproduction mechanism needs high dimension precision, and especially tape in the running must be exactly on rotary head cylinder.
For make tape can with tape cassete together with respect to rotary head cylinder loading and unloading, need and tape extracted out from tape cassete and the device on the rotary head cylinder and tape is wrapped in device in the tape cassete, also need to drive the dedicated motor of this mechanism.
At present, the develop rapidly of recoding/reproduction mechanism, the size of the parts that it comprised is but reducing year by year.Like this, the change of dwindling with material of the size of recoding/reproduction mechanism can make cost descend.For example: the size decreases of rotary head cylinder and various motors, price descend, thus the recoding/reproduction mechanism size reduce become a reality with low cost.
In view of these several respects, an object of the present invention is to provide a kind of novel recoding/reproduction mechanism, this mechanism simplifies by large-scale structure, has reduced dimension precision requirement and cost; A kind of electronic equipment also is provided, and wherein, rotary head cylinder is not located on the tape transport side or is contained on the tape cassete, thereby tape can become one with it on rotary head cylinder.
For achieving the above object, the invention provides a kind of electronic equipment, in this electronic equipment, tape cassete with recoding/reproduction mechanism is dismountable, it comprises: the tape cassete accommodation section, and with the I/O terminal in the tape cassete web member that is electrically connected with the accommodation section and the circuit part that is used for recoding/reproduction mechanism.
According to this structure, except the circuit part of the recoding/reproduction mechanism that is used for driving and control tape cassete, this electronic equipment no longer needs other device.Because this electronic equipment do not need loading device for magnetic tape, thus simplified structure greatly.
Because this electronic equipment includes image mechanism, so can have the function of video camera.
In addition, the invention provides a kind of tape cassete, this tape cassete can dismounting on electronic equipment.Has recoding/reproduction mechanism in the tape cassete shell, this recoding/reproduction mechanism comprises: a countershaft platform, tep reel by the support of rotating shaft platform, but rotary head cylinder that is wound with the tape of recoding/reproduction, and I/O terminal that is electrically connected with electronic equipment, this rotary head cylinder disposes by following mode, that is: with the tape extracted out on the tep reel on rotary head cylinder, thereby tape and rotary head cylinder become one.
According to this kind structure, the signal that writes down on the tape is reproduced by same rotary head cylinder, and when record and reproduction, tape turns round on the same position with respect to rotary head cylinder.Can reduce the dimension precision requirement of rotary head cylinder itself and guide groove tilt accuracy thus with respect to magnetic head.
Rotating shaft platform and tep reel be located in the tape cassete because drive the rotating shaft motor of rotating shaft platform, so can become one.
Also because magnetic drum motor and rotary head cylinder fit together, so rotary head cylinder and magnetic drum motor can be with the small size moulding.
In addition, because recoding/reproduction mechanism is sealed in the tape cassete shell, thus can prevent that recoding/reproduction mechanism from being corroded, and avoid the rotary head cylinder surface wetting.
Fig. 1 is according to camera body of the present invention and has the skeleton view of the tape cassete of recoding/reproduction mechanism;
Fig. 2 is the rear perspective of camera body;
Fig. 3 is the cut-open view that the camera body of tape cassete is housed;
Fig. 4 is the planimetric map of recoding/reproduction mechanism in the tape cassete;
Fig. 5 is from the look side view of the recoding/reproduction mechanism Fig. 4 of tep reel one side;
Fig. 6 is the synoptic diagram of erasing head device in video process;
Fig. 7 is the synoptic diagram of same erasing head device in the reproduction process;
Fig. 8 is the synoptic diagram that rotary head cylinder is provided with the CTL head;
Fig. 9 is the amplification view along A A hatching line among Fig. 8;
Figure 10 is a tape header/trailer detection signal of using the CTL signal, the synoptic diagram of tape-servo signal and phase servo signal;
Figure 11 is the synoptic diagram that adopts the magnetic tape trailer detection of rotary head cylinder;
Figure 12 is that tape is with respect to the synoptic diagram of rotary head cylinder by detecting;
Figure 13 is the amplification view of Figure 12;
Figure 14 has to prevent the come off cut-open view of rotary head cylinder major part of flange of tape;
Figure 15 is and the integrated magnetic drum substrate of guide groove cut-open view;
Figure 16 is the skeleton view of head drum and guide groove separated position among expression Figure 15;
Figure 17 is from the look planimetric map of shooting magnetic head arrangement for adjusting height of the rear side of rotary head cylinder;
Figure 18 is the cut-open view along B-B hatching line among Figure 17;
Figure 19 is the amplification view of shooting magnetic head arrangement for adjusting height;
Figure 20 is the amplification view of existing shooting magnetic head arrangement for adjusting height.
Embodiment is described below, is equipped with on the video camera in an embodiment according to electronic equipment of the present invention and tape cassete with recoding/reproduction mechanism.
Fig. 1 is the skeleton view of camera body and tape cassete, and Fig. 2 is the rear perspective of camera body, and Fig. 3 is the internal structural map that is positioned on the tape cassete in the video camera.
The basic structure of video camera and tape cassete is at first described.
Insert door 9 being provided with tape cassete with the side surface of the camera body 1 of handle grip 7 relative sides, this inserts 9 and opens and closes around hinge 9a, and tape cassete passes this and inserts door and be contained in the camera body 1.
Below with reference to Figure 4 and 5 tape cassete 10 is described.The shell 11 of tape cassete 10 is molded by plastics, thereby can be at inner seal.Be provided with a countershaft platform 12,13 and tep reel 14,15 on shell 11, this tep reel 14,15 is positioned on the rotating shaft platform 12,13, thereby can the while unitary rotation.Referring to Fig. 4, the tep reel 14 on right side is that the tep reel 15 in left side is the take-up side for the band side.
In shell 11, remove tep reel 14, the 15 outer rotary head cylinders 16 that also are provided with.Rotary head cylinder 16 is partial to for band side tep reel 14 on one side slightly.From tape 17 spirally-wounds of extracting out for band side 14,, and at the bottom of the magnetic drum that is positioned at the magnetic drum outlet side, extract out so that it can begin from the magnetic drum head that is positioned at the magnetic drum on the suction side to twine.Subsequently, tape 17 is on the tep reel 15 of take-up side.
Be described in detail again below.Because smoothly on rotary head cylinder 16, so two rotating shaft platforms 12,13 and tep reel 14,15 are positioned on the supporting seat 18, they all are obliquely installed tape 17 with spiral fashion, and are positioned at the higher position for the band side.Regulate the rotation direction of tapes and highly from the tape extracted out for band side 14 by the stator ring 19 and the guide wheel 20 that fixedly inclines, then around the magnetic drum on the suction side.In addition, the tape of extracting out from the magnetic drum outlet side 17 is regulated the rotation direction of tapes and highly by fixedly incline guide wheel 21 and stator ring 22, then on take-up side 15.Adopt this structure, the tape 17 on the rotary head cylinder 16 can not thrown off like this.
In addition, rotating shaft platform 12,13 can be driven in convertible mode by the rotating shaft drive unit in the shell 11.Label 23 expression rotating shaft motors.Follower gear 25 and driving gear 24 engagements.Fulcrum escapement 26 meshes with the pinion wheel 25a of follower gear 25.Escapement 28 is by the pinion wheel 26a engagement of neutral gear 27 with fulcrum escapement 26.They can be supported by plain film 29 like this.Escapement 28 selectively with rotating shaft platform gear 12a, 13a engagement, thus drive rotating shaft platform 12,13 in the wound tape direction.For example, state shown in Figure 1 is the recoding/reproduction state, and under this state, escapement 28 meshes in take-up one side with rotating shaft platform gear 13a, and tape 17 is just on the tep reel 15 of take-up side.
Like this, utilize rotating shaft motor 23 and can finish the process that drives tape 17 without driving wheel.
Employing has the motor of magnetic drum motor (not shown) and magnetic drum unitary member as rotary head cylinder 16.
Like this, include so-called recoding/reproduction mechanism in tape cassete 10 structures of the present invention, that is: rotating shaft platform 12,13 and tep reel 14,15 together are arranged in the shell 11 together with rotary head cylinder 16.Like this, on a side of shell 11, be provided with servosignal and switching signal are provided to rotating shaft motor 23 and magnetic drum motor, vision signal, the I/O terminal substrate 30 of sound signal and other signal, I/O terminal substrate 30 can expose shell 11.
The accommodation section 31 of the video camera 1 shown in above-mentioned tape cassete 10 load maps 3.31 depth madial wall is provided with the web member 32 that puts in accommodation section 31 in the accommodation section.Web member 32 is fixed together with the circuit substrate 33 that is supported in the camera body 1.If that is: put tape cassete 10 into accommodation section 31, I/O terminal substrate 30 just matches with web member 32, and is electrically connected with it, thereby can be driven and be controlled the recoding/reproduction mechanism of tape cassete 10 by the control signal that circuit substrate 33 produces.Can carry out recoding/reproduction operation (referring to Fig. 1 and Fig. 2) by the action button group of handling on the camera body 1 34.
In the video camera of said structure, tape cassete integral body comprises: tape 17 and be used to the rotary head cylinder 16 that writes down and reproduce on the tep reel 14,15, wherein tape 17 is continuously on rotary head cylinder 16.Like this, the signal that is recorded on the tape 17 by rotary head cylinder 16 is reproduced by same rotary head cylinder 16.Therefore when reproducing, rotating magnetic head is only followed the tracks of the magnetic track record of tape.The position of writing down on tape like this, needn't always be in the normal place (tape formats) with respect to tape.
Because when record and reproduction, tape 17 on rotary head cylinder 16 is positioned at the same position operation with respect to rotary head cylinder, so, the guide groove of rotary head cylinder is required also corresponding loosening with respect to inclination angle precision, relative position and the linearity of magnetic head with common knock-down tape cassete systematic comparison.
In addition, in common tape cassete, tape need be used on the rotary head cylinder with same size, if the external diameter of magnetic drum changes, then corresponding tape speed also changes.So just be necessary to carry out standardization with predetermined tolerance.But in tape cassete according to the present invention, tape 17 continues on rotary head cylinder 16, and is at record with when reproducing, identical with respect to the speed of the rotary head cylinder 16 of tape 17.Thus, the influence of rotary head cylinder external diameter tolerance can be ignored, thereby accuracy requirement can be reduced the rotary head cylinder external diameter.
In addition, because when the tape cassete 10 that contains recoding/reproduction mechanism inserted the accommodation section 31 of video camera 1, tape cassete 10 was electrically connected with web member 32, no longer needs to load and unload the device of tape cassete 10, also no longer needs tape around the erecting device to rotary head cylinder.Thus, can reduce the number of elements of the said mechanism of forming video camera in a large number, and help the assembling and the adjusting of video camera, thereby further reduce the size of video camera with lower expense.
Described the essential structure of the mechanism of tape cassete 10 above, its concrete operation has been described below.Same numeral sign components identical in the accompanying drawing.[servomechanism installation of the stable rotation of rotating shaft]
When record and reproduction operation, rotating shaft motor 23 produces the torque of the tep reel 15 that makes the tape winding, thereby tep reel can be with stable speed rotation.Although tape is slow around the speed that to the end speed was wrapped on the tep reel than beginning-of-tape (BOT), but because tape 17 is combined as a whole with rotary head cylinder 16, and record and what use when reproducing is same rotary head cylinder can not write down and reproduce so need not have the rotating shaft motor of any special servo circuit yet.[enclosure-type cassette box device]
By making tape cassete shell 11 inner sealings and keeping inner dry or be in state such as deoxidation, can prevent corrosion of elements in the recoding/reproduction mechanism, particularly prevent from tape to be bonded on the rotary head cylinder owing to the humidity of rotary head cylinder 16.[tep reel device]
By with tep reel 14,15 with respect to shell 11 horizontal positioned, can save the upper limb of tep reel, and substitute upper limb with the top board of shell 11.[erasing head device]
Fig. 6 and 7 shows switch member 37, and the erasing head 35 of one side for being made by magnetisable material is guide head 36 at its opposite side, thereby switch member 37 can be overturn around axle 38 at the entrance side of rotary head cylinder 16.As shown in Figure 6, before the record, erasing head 35 is turned to tape 17 1 sides so that tape is carried out demagnetization.As shown in Figure 7, when reproducing, guide head 36 is turned to tape one side with the guide rail as tape 17.Another uses the example of erasing head to be: erasing head can with will be outside the tape to tep reel side contacts, to carry out demagnetization.[record of CTL signal]
The CTL signal is to be recorded in advance on the CTL track part of tape, and the CTL head reads the CTL signal with control rotating shaft motor 23 subsequently, thereby the control tape rotates.Thus, available driving wheel or like and control tape without FG (frequency generator) and rotate.[the first build device of magnetic drum and CTL]
Shown in Fig. 8 and 9, CTL 40 guide groove 39 next doors that are embedded on the rotary head cylinder 16 fixation side magnetic drum 16a.That is: on fixation side magnetic drum 16a, be formed with recess 41, thereby this recess 41 passes across guide groove 39, and CTL 40 is supported in the recess 41 by installation sheet 42.Thus, the CTL track part of tape 17 along guide groove 39 corresponding to CTL 40 runnings, thereby can read the CTL signal.Label 43 representatives are arranged in the shooting magnetic head of the rotating side magnetic drum 16b of rotary head cylinder 16.
Utilize this structure, different with commonsense method, can save the space.In commonsense method, the CTL head is positioned on the tape running path.[detection of tape header/trailer]
As shown in figure 10, compare, write down header/trailer detection signal 46 in advance with different frequency at the head and the afterbody of tape with the tape-servo signal 45 on the CTL track part 44 that is recorded in tape 17 in advance.When CTL read head/afterbody detection signal 46, just in the detection of carrying out header/trailer.Label 47 is represented the recoding/reproduction track part, and label 48 is represented cue track (cue track).[tape-servo/phase servo detects]
Figure 10 shows the signal section of having omitted a wavelength, and this part is to be formed by the servosignal 45 that sets in advance on the CTL of tape 17 track part 44, with this previous signal of signal of omitting a wavelength as reference signal 49.The CTL head can detect tape-servo signal and phase servo signal thus.[tape drag unit]
As shown in Figure 4, fixedly brake component 50,51 respectively by predetermined friction force with for being with the rotating shaft platform 12 on the side to contact with rotating shaft platform 13 on the take-up side.Like this, in the tape running process, the rotating shaft platform rotates under the situation of slight braking.Thus, tape is in the state that is added with back tension, thereby prevents that tape breaks away from.[adopting the magnetic tape trailer pick-up unit of rotary head cylinder]
As shown in figure 11, be provided with a light-emitting component 52 and a light receiving element 53 of making by optical sensor or analog with position that fixedly magnetic drum 16a is relative directly over the guide groove 39 in rotary head cylinder 16, this light receiving element 53 be used for receiving from light-emitting component 52 send by the fixing light of magnetic drum 16a surface reflection.Be formed with as shown in the figure one or more holes or opening portion 54 at the tape edge of tape 17 afterbodys.
According to this structure, tape 17 is when record and reproduction, and the light that sends from light-emitting component 52 is absorbed by the tape surface, so this light is not injected on the light receiving element 53.If close on magnetic tape trailer and opening portion 54 through optical sensors, the light that sends from light-emitting component 52 passes opening portion 54 through fixedly magnetic drum surface reflections, thereby reflected light is mapped to can detect on the light receiving element 53 and has run to magnetic tape trailer then.[detecting the device of tape] with respect to the running height of rotary head cylinder
As Figure 12, shown in 13, the part of the fixedly magnetic drum 16a directly over the guide groove on the rotary head cylinder 16 39 is provided with a perforate 55.Be provided with the light-emitting component 56 just like LED or analog in perforate 55, be provided with the light receiving element 57 just like optical sensor or analog in the outside of magnetic drum, it is relative with light-emitting component 56.
Utilize this kind structure, whether can detect tape 17 bases of turning round on the rotary head cylinder exactly along 39 runnings of magnetic drum guide groove with spirality.That is: be arranged in exactly under the state of guide groove 39 runnings on the base of tape 17, intercepted and captured by tape 17 fully from the light that light-emitting component 56 sends, thereby light is penetrated less than receiving on the optical element 57, if tape 17 its base guide groove 39 in the running floats, the light that sends from light-emitting component 56 spills and is mapped on the light receiving element 57, can detect tape thus not on the accurate position of rotary head cylinder.[anti-tape come off guide apparatus]
As shown in figure 14, the anti-tape edge 58 that comes off is Unitarily molded with the guide groove 39 excircle parts of fixing magnetic drum 16a, and this simple structure can prevent that tape 17 from skidding off guide groove 39.[with magnetic drum substrate structure be the guide groove of one]
Usually, being used for tape is to be located at lath or analog on the periphery of fixing magnetic drum around the locating channel to rotary head cylinder.According to the present invention, shown in Figure 15 and 16, guide apparatus 60 is an one with magnetic drum substrate 59 structures, and makes guide apparatus 60 and the fixedly external peripheral surface engagement of magnetic drum 16a with press fit and so on.
According to this kind structure, available plastic pattern system guide apparatus 60, guide groove surface 60a also can be easily molded as shape.[1-substrate shooting magnetic head assembly]
Figure 17 is the planar rear view of rotary head drum 16b, and Figure 18 is the sectional view along B-B hatching line among Figure 17.In the rear surface of rotary head drum 16b, single substrate 61 is fixed to the magnetic drum center by bolt 62,62 relative substrate mating parts 63,63, and two shooting magnetic heads 43,43 are housed at the two ends of substrate 61.The most advanced and sophisticated precession magnetic drum of regulating bolt 64,64 contacts with substrate 61, turns to regulate the tracking that bolt 64 just can be regulated shooting magnetic head 43,43 by substrate 61.
Figure 19 follows the tracks of the amplification profile of regulating part at the track part of shooting magnetic head 43 1 sides, and Figure 20 is that common track part is followed the tracks of the amplification profile of regulating part.
With reference to Figure 19, partly a large span is arranged because can guarantee from the bolt of substrate 61 to the tip of shooting magnetic head 43, so when when regulating bolt 64 and regulate the height of shooting magnetic heads 43, the degree of tilt of shooting magnetic head can be reduced to smaller value, thereby can not influence contacting of it and tape.Like this, the mating part 63 of substrate 61 needn't be assembled, and accuracy requirement can be loosened shooting magnetic head setting height(from bottom) with high precision.
On the contrary, in the prior art as shown in figure 20, because very short to the span at shooting magnetic head tip from the bolt part of substrate 61, when regulating shooting magnetic heads 43 with adjusting bolt 64, the degree of tilt of shooting magnetic head 43 increases, thereby reduces its contact to tape.Like this, the receiving unit 63 and the shooting magnetic head height that just require to receive substrate 61 have higher degree of accuracy.[rotating shaft platform/tep reel integrated device]
Because tep reel 14,15 is inseparable with respect to rotating shaft platform 12,13rd,, thereby make this apparatus structure simple and cheap accordingly so they can structure be an integral body.By the central rotating shaft 14a with tep reel 14,15,15a regulates the height of rotating shaft platform 12,13, the height of scalable tape.The tape guide device of upper limb [not with]
If apply downward pressure, just form a tape guide that does not need upper limb with the tape of tape guide in the tape running system.In this tape running system, tape is from tep reel 14 extractions of confession band side and on tape take-up side tep reel 15.
Although in the above-described embodiments, include rotating shaft motor and magnetic drum motor in the tape cassete, these motors also can place on the camera body 1.
Although be that the dismountable tape cassete that has electronic equipment and recoding/reproduction mechanism in the video camera is described, it also is common will this dismountable tape cassete being set on audio frequency apparatus or other similar devices.
In addition, except that tape and rotary head cylinder, the recoding/reproduction mechanism in the tape cassete also is applicable to the tape cassete that comprises disk and photoelectromagnetic mechanism.
In according to electronic equipment of the present invention, the tape cassete that contains recoding/reproduction mechanism is removable.This electronic equipment comprises the accommodation section that tape is installed, and is used for the circuit part that I/O terminal with tape cassete is electrically connected to the web member on the electronic equipment and is used for recoding/reproduction mechanism in the accommodation section.Like this, the circuit part that only will drive and control the recoding/reproduction mechanism of tape cassete can be realized the purpose of this equipment as electronic equipment, and can save tape cassete and insert device and loading device for magnetic tape.Like this mechanism is simplified on a large scale, make the device structure miniaturization, thereby obtain novel electronic equipment.
In addition, because this electronic equipment also comprises camera head, so this electronic equipment has the function of built-in type video camera.
Tape cassete of the present invention still is a kind of tape cassete that can dismounting in electronic equipment.In the tape cassete shell, comprise recoding/reproduction mechanism, respectively tep reel that supports by the rotating shaft platform and the rotary head cylinder that is wound with the tape that is used for recoding/reproduction with a countershaft platform.In the tape cassete shell, be provided with the I/O terminal that is electrically connected with electronic equipment.Because the tape of extracting out from tep reel is on rotary head cylinder, so in this state, tep reel and rotary head cylinder are integrated with the dimensional accuracy of rotary head cylinder self, and can loosen the degree of tilt standard of guide groove with respect to magnetic head or analog, thereby can obtain very easy recoding/reproduction mechanism, and can simplify when assembling to the adjusting of device and reduce cost, dwindle structure.
In addition, because the tape cassete shell includes the rotating shaft motor that drives the rotating shaft platform, and the rotating shaft platform is one with the tep reel structure, thus assembling, assembling, maintenance and check all very convenient.
Because magnetic drum motor and rotary head cylinder structure are one, so can effectively utilize space mounting magnetic drum motor.
Because recoding/reproduction mechanism seals in the tape cassete shell, corrode so can prevent recoding/reproduction mechanism, especially can prevent the rotary head cylinder surface moisture.
Though described the preferred embodiments of the present invention, should be understood that under the condition that does not depart from the present invention's design and can on form or details, carry out various modifications and variations by those of ordinary skill in the art.Expectation the invention is not restricted to preferred embodiment, but is limited by the accompanying claims thus.
Claims (6)
1. electronic equipment, wherein, the tape cassete with recoding/reproduction mechanism is removable, this electronic equipment comprises:
One is used to hold the accommodation section of described tape cassete;
One in the described accommodation section, be used for be arranged on described tape cassete on the web member that is electrically connected of I/O terminal;
One is used for the circuit part in the described recoding/reproduction mechanism.
2. according to the described electronic equipment of claim 1, also comprise:
One image mechanism.
One kind can dismounting on electronic equipment tape cassete, it comprises:
One comprises the tape cassete shell of recoding/reproduction mechanism, this recoding/reproduction mechanism includes a countershaft platform, the tep reel that supports by described rotating shaft platform respectively, one is wound with the rotary head cylinder of the tape that is used to write down and reproduces and is connected electrically in I/O terminal on the described electronic equipment, the structure of described rotary head cylinder the tape of extracting out from described tep reel is wrapped on the rotary head cylinder and with described rotary head cylinder structure be one.
4. tape cassete according to claim 3 wherein is provided with the rotating shaft motor that drives described rotating shaft platform in described tape cassete shell.
5. tape cassete according to claim 3, wherein said rotary head cylinder and magnetic drum motor structure are one.
6. tape cassete according to claim 3, wherein said recoding/reproduction mechanism is sealed in the described tape cassete shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97120554 CN1179597A (en) | 1996-08-27 | 1997-08-27 | Electronic apparatus and removable cartridge having recording/reproduction mechanism portion |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP225433/96 | 1996-08-27 | ||
| CN 97120554 CN1179597A (en) | 1996-08-27 | 1997-08-27 | Electronic apparatus and removable cartridge having recording/reproduction mechanism portion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1179597A true CN1179597A (en) | 1998-04-22 |
Family
ID=5175987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97120554 Pending CN1179597A (en) | 1996-08-27 | 1997-08-27 | Electronic apparatus and removable cartridge having recording/reproduction mechanism portion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1179597A (en) |
-
1997
- 1997-08-27 CN CN 97120554 patent/CN1179597A/en active Pending
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