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11. 发明专利

JPH0636398A RECORDING AND REPRODUCING DEVICE AND TAPE CASSETTE 失效
公开(公告)号：JPH0636398A
公开(公告)日：1994-02-10
申请号：JP21243292
申请日：1992-07-17
申请人： SONY CORP
发明人： FUJII HIROSHI , OTA SHUICHI , SENSHIYUU YOUICHIROU , SAWADA TAKASHI , UETAKE AKIHIRO , HASEGAWA SHINICHI , SUZUKI KAZUYOSHI , MORII TETSUO
IPC分类号： G11B15/07 , G11B15/32 , G11B23/087 , G11B23/28 , G11B23/30 , G11B23/38
摘要： PURPOSE:To detect the presence or absence of the tape cassette by means of a detection means located apart from a moving locus in a tape player passing through the position corresponding to the information detection hole of the tape cassette where the position of a reel table is changed according to the size of the tape cassette to be used and with the moving locus of the reel table mounted. CONSTITUTION:A light emitting element 44 and a light receiving element 45 for detecting the information for a small tape cassette 2 are provided at the position where light 46 passes through an information detection hole 17 formed on a bottom wall 11 of a cassette case 3 of the small cassette loaded on a video tape player 1 and an information display hole 15 formed on a back wall 16 in the almost vertical direction and the light emitting element and the light receiving element are deviated from the moving locus of a reel table 39'.

12. 发明专利

JPH064949A RECORDING AND REPRODUCING DEVICE AND TAPE CASSETTE 失效
公开(公告)号：JPH064949A
公开(公告)日：1994-01-14
申请号：JP18160392
申请日：1992-06-17
申请人： SONY CORP
发明人： UETAKE AKIHIRO , SAWADA TAKASHI , OTA SHUICHI , HASEGAWA SHINICHI , SENSHIYUU YOUICHIROU , FUJII HIROSHI , SUZUKI KAZUYOSHI , MORII TETSUO , SUKAI CHIAKI
IPC分类号： G11B15/61 , G11B15/665 , G11B15/675 , G11B23/087
摘要： PURPOSE:To reduce cost by situating a tape outlet on one side in approximately the same position as a small tape cassette and situating a tape outlet on the other side in a position displaced against one side from the tape outlet on the other side of the small tape cassette. CONSTITUTION:In this recording and reproducing device, large and small tape cassettes are loaded to situate tape outlets 3 on one side respectively in the same position. In this case, the position of a tape guide 20 corresponding to the tape outlets on one side at the time of traveling the tape is fixed, and only the position of a tape guide 20' corresponding to the tape outlets on the other side at the time of traveling the tape is changed at the time of using the large tape cassette 1 and at the time of using the small tape cassette respectively. By this method, no roller guide can be provided in either case of the large or the small tape cassette in its cassette case 2.

13. 发明专利

JPH05242637A 失效
公开(公告)号：JPH05242637A
公开(公告)日：1993-09-21
申请号：JP7569392
申请日：1992-02-27
申请人： SONY CORP
发明人： SENSHIYUU YOUICHIROU , OTA SHUICHI , FUJII HIROSHI , UETAKE AKIHIRO , SAWADA TAKASHI , HASEGAWA SHINICHI , SUZUKI KAZUYOSHI , MORII TETSUO
IPC分类号： G11B15/61 , G11B23/087
摘要： PURPOSE:To enable insertion of a head drum in a mouth part whereto a member for loading a tape is inserted, and also to increase the sealing degree of the mouth part at the unused time. CONSTITUTION:A front lid 20 which is moved between a closing position to cover the front surface of a magnetic tape 3 located outside a cassette case and an opening position to open the front surface of the magnetic tape 3, is provided freely rotatably at the front surface part of cassette case. A slide shutter 17 to close the lower surface of mouth part when the front lid 20 is in the closing position and to open the lower surface of mouth part when the front lid 20 is in the opening position, is provided so as to freely slide on the cassette case. An upper lid 28, the front end part of which is supported freely rotatably by the front lid 20 and also the rear end part 31 is pressed so as elastically contact with the front end part 14 of a top plate of the cassette case, closes the upper surface of mouth part when the front lid is in the closing position, then it moves to the opening position to open the upper surface of mouth part when the front lid is moved to the opening position.

14. 发明专利

JPH05234185A 失效
公开(公告)号：JPH05234185A
公开(公告)日：1993-09-10
申请号：JP6939592
申请日：1992-02-20
申请人： SONY CORP
发明人： UETAKE AKIHIRO
IPC分类号： G11B15/43 , G11B15/32
摘要： PURPOSE:To reduce the difference between tension applying on magnetic tapes generated owing to the difference between the sizes of used tape cassettes with an inexpensive mechanism in a recording and reproducing device capable of loading the tape cassettes of two different sizes having the different distances between two tape reels. CONSTITUTION:The position of a reel base 18 is moved corresponding to the used tape cassette. A ten-legged pin 31 erected on an arm 30 which is freely rotatably to a chassis is elastically in contact with the magnetic tapes 5 and 12. One end of a brake band 32 is supported to the chassis at a (33) and another end is supported to the arm at a (34) and the middle part is rewound around the brake drum 18b of the reel base. The supporting positions 33 and 34 are disposed symmetrically with the respect to the perpendicular bisector C of a segment AB connecting the centers A and B in two positions corresponding to the tape cassette on the reel base.

15. 发明专利

JPH0512769A ROTARY HEAD DRUM DEVICE 失效
公开(公告)号：JPH0512769A
公开(公告)日：1993-01-22
申请号：JP16656491
申请日：1991-07-08
申请人： SONY CORP
发明人： HASEGAWA SHINICHI , UETAKE AKIHIRO
IPC分类号： G11B5/53 , G11B15/61
摘要： PURPOSE:To improve head contact even when the rotary head drum device is reduced in size by decreasing each drum diameter and increasing the opposition area between a rotary drum and an upper fixed drum, forming air blowout grooves in at least one surface, and forming air film between a tape travel surface of each drum and a tape. CONSTITUTION:Even when the drums 10, 30, and 40 which constitute the rotary head drum device 1 are reduced in diameter and the peripheral wall part of the lower fixed drum 10 is made thin, the mutually opposite top surface 30b and reverse surface 40b of the rotary drum 30 and upper fixed drum 40 can be made conic and inversely conic to increase an area. Consequently, the respective air blowout grooves 36 can be formed in the top surface 30b of the drum 30 and the air film with proper and uniform layer thickness can be formed between the tape travel surfaces of the respective drums 10, 30, and 40 and the magnetic tape with air blow out of them. The tape is therefore not damaged and even when the device is reduced in size, the heat contact is sufficiently secured.

16. 发明专利

JPH04243045A DIGITAL VTR 失效
公开(公告)号：JPH04243045A
公开(公告)日：1992-08-31
申请号：JP1590491
申请日：1991-01-16
申请人： SONY CORP
发明人： UETAKE AKIHIRO , KANOTA KEIJI
IPC分类号： G11B5/09 , G11B5/53 , G11B15/467 , H04N5/782 , H04N5/7826 , H04N5/783
摘要： PURPOSE:To provide the digital VTR having an intermittent recording function by a mechanism part, such as head disposition, which is the same as in ordinary recording. CONSTITUTION:Magnetic heads HA and HB are mounted in proximity to an upper drum 1a of a tape guide drum 1. The extension directions of the gaps of these heads HA and HB are varied and graded azimuth recording is executed. The recording signals compressed in time base are recorded in two tracks by the heads HA and HB. The magnetic tape 2 is intermittently fed and is subjected to recording in the still period of the magnetic tape 2.

17. 发明专利

JPH04129017A DIGITAL SIGNAL RECORDING AND REPRODUCING DEVICE 失效
公开(公告)号：JPH04129017A
公开(公告)日：1992-04-30
申请号：JP24970690
申请日：1990-09-19
申请人： SONY CORP
发明人： KANOTA KEIJI , UETAKE AKIHIRO
IPC分类号： G11B5/53 , G11B5/127 , G11B5/29
摘要： PURPOSE:To perform post-recording of an optional signal without lowering a utilizing efficiency of a recording medium by recording the signal in order to equalize a level difference between tracks with a level difference between heads in their scanning direction. CONSTITUTION:The heads 9a and 9b are integrated into one body, and the level difference P corresponding to a track pitch is provided between the heads 9a and 9b, while a prescribed level difference GL is provided in the head scanning direction in order not to generate an effect of cross talk, etc. Then, a head device consisting of these heads 9a and 9b is rotated to scan, and a tape 10 is moved along a circulferential surface, so that a recording pattern is formed on the tape 10. In order to equalize the level difference (d) between tracks which are the tracks 19a and 19b to be recorded in this recording pattern by the heads 9a and 9b with the level difference GL between the heads 9a and 9b in their scanning direction, a moving amt. of the tape per unit time and the number of revolutions of the heads 9a and 9b ar settled. By this method, the post-recording of each signal, etc., is performed in simple constitution without lowering the utilizing efficiency.

18. 发明专利

JPH02218052A ROTATING HEAD TYPE RECORDING AND REPRODUCING DEVICE 失效
公开(公告)号：JPH02218052A
公开(公告)日：1990-08-30
申请号：JP3766589
申请日：1989-02-17
申请人： SONY CORP
发明人： UETAKE AKIHIRO , FUKAHORI KENICHI , HASEGAWA SHINICHI , KUBOTA YUKIO
IPC分类号： G11B15/665
摘要： PURPOSE:To perform excellent winding with a simple constitution by relatively moving a 1st chassis where a cassette is placed and a guide pin is provided and a 2nd chassis where a rotating drum is provided and winding a tape to the rotating drum while the tape is guided by the guide pin. CONSTITUTION:The 1st chassis 1 is fixed in a rack 4 and a gear provided in the rack 4 is meshed with the gear of the loading motor 26 of the 2nd chassis 2. At the time of unloading, the tape 33 is stretched straight in a tape traveling part 35 between guide rollers 34. By rotating the motor 26 from such a state, the chassis 2 moves toward a reel base 12 and the rotating drum 21 rushes in the notches 16-18 of the chassis 1. Thus, the tape 33 is guided by the guide pins 13 and 14 to be wound to the peripheral surface of the drum 21 at the time of loading. Then, the tape 33 is wound with the simple constitution.

19. 发明专利

JPH01296401A HELICAL SCAN TYPE RECORDING DEVICE 失效
公开(公告)号：JPH01296401A
公开(公告)日：1989-11-29
申请号：JP12660788
申请日：1988-05-24
申请人： SONY CORP
发明人： KUBOTA YUKIO , KANOTA KEIJI , FUKAHORI KENICHI , UETAKE AKIHIRO
IPC分类号： G11B5/09 , G11B5/008
摘要： PURPOSE:To eliminate pairing defect, etc., between heads and to realize satisfactory recording by dividing a recording signal, after that, synchronizing the signal and recording all signals with a united type head. CONSTITUTION:The recording signal of a circuit 2, such as a video signal, etc., corresponding to one time revolution of a drum 8, is divided into an (n)- number (an integer number >=2) of signals and these divided signals are synchronized in a delay circuit 4. Then, the synchronized signals are supplied to (n)-chip united type heads A and B with (n)-number of step difference and the above- mentioned (n)-divided signals are simultaneously recorded to a recording tape 9, whose lap angle is 360/n deg.. Thus, the pairing defect between the heads and the linearity problem of a track, etc., are eliminated and the satisfactory recording can be realized with simple constitution.

20. 发明专利

JPS6379218A RECORDING AND REPRODUCING DEVICE 失效
公开(公告)号：JPS6379218A
公开(公告)日：1988-04-09
申请号：JP22471386
申请日：1986-09-22
申请人： SONY CORP
发明人： UETAKE AKIHIRO , SHINDO NORIO
IPC分类号： G11B5/008 , G11B5/52 , G11B5/55 , G11B21/02
摘要： PURPOSE:To enable the microfeeding of a head drum by providing two screws having different leads each other, a composing a differential screw mechanism by these two screws and moving the head drum in the axial direction by the differential screw mechanism. CONSTITUTION:When the double nut 30 fixed to an output shaft 29 is rotated by driving a feed motor 27, the double nut 30 is moved in the vertical direction for a housing 32 with the lead L1 of a male screw 31, as the male screw 31 formed on the outer peripheral face of the nut 30 is engaged with the female screw 33 of the housing 32. On the other hand, since the driving screw 35 engaged with the female screw 34 at the inner side of the double nut 30 is checked in its rotation by a spline 36, the lead L2 of the female screw 34 is moved in the vertical direction for the double nut 30, the nut 30 is moved in the reverse direction by the L1 and the driving screw 35 is moved in the axial direction with the L1-L2 for the housing 32 and a chassis 26. Due to the driving screw 35 being linked with the drum 10 via a guide block 22 and stationary drum 13, the drum 10 is moved in the axial direction to reduce the difference L1-L2 in the leads and the microfeeding of the head drum 10 can be performed.

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