专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPH07283505A PRINTED BOARD DEVICE 失效
公开(公告)号：JPH07283505A
公开(公告)日：1995-10-27
申请号：JP7059794
申请日：1994-04-08
申请人： PIONEER KK TOHOKU , PIONEER ELECTRONIC CORP
发明人： KANEKO TAKASHI , NAKAYAMA MASAHIRO
IPC分类号： H01R11/01 , H05K1/14 , H05K1/18
摘要： PURPOSE:To securely mount electronic parts on a board and reduce the number of assembling steps and processing costs for the board. CONSTITUTION:Trisected board pieces 10a, 10b and 10c are connected by a jumper wire 16, and a core terminal 6 of a power source transducer and a terminal 5 are soldered on the side of the board piece 10c. The core terminal 6 and a pattern 18 are connected for conduction by a pattern 17 and the jumper wire 16. Thus, even when the printed board piece 10 is warped in soldering the printed circuit board, the jumper wire 16 absorbs the stress of the warping, and the power source transducer is securely mounted on the printed board piece 10. Therefore, a lead wire which is conventionally required to ground the core is not necessary, and screwing of an end of the lead wire is not required, either.

2. 发明专利

JPH06326621A TUNING METHOD FOR WIRELESS MICROPHONE 失效
公开(公告)号：JPH06326621A
公开(公告)日：1994-11-25
申请号：JP11595193
申请日：1993-05-18
申请人： PIONEER KK TOHOKU , PIONEER ELECTRONIC CORP
发明人： NAKAYAMA MASAHIRO
IPC分类号： H04B1/04 , H04B7/00
摘要： PURPOSE:To automatically select a clear channel in which an outside noise or interference or the like can be reduced. CONSTITUTION:When a noise level is beyond a reference level in an arbitrary channel, a CPU 17 at a receiver side operates a scan operation to the entire channels, selects the channel in which the noise level is the minimum, transmits the selected channel data through an infrared ray to a wireless microphone side, and turns a transmission channel at the wireless microphone side to a reception channel at the receiver side. Even when the outside noise or the interference or the like is generated in the channel which is being used at present, it is not necessary to operate a frequency selection switch 18 at the receiver side, and to select the channel in which the outside noise or the interference or the like is reduced, and simultaneously it is not necessary to operate a frequency selection switch at the wireless microphone side, and to select the transmission channel.

3. 发明专利

JPH0779113A ANTENNA 失效
公开(公告)号：JPH0779113A
公开(公告)日：1995-03-20
申请号：JP22114293
申请日：1993-09-06
申请人： PIONEER KK TOHOKU , PIONEER ELECTRONIC CORP , HOKUSHIN IND
发明人： NAKAYAMA MASAHIRO , MURAKOSHI EIJI
IPC分类号： H01Q1/24 , H01Q13/08
摘要： PURPOSE:To easily change a resonance frequency with a simple configuration. CONSTITUTION:A radiation metallic plate 1 is arranged almost in parallel with an earth plate 4, one end of the radiation metallic plate 1 is connected to the earth plate 4 by a connection conductor 2 and a surrounding length L of the radiation metallic plate 1 being one of factors for deciding the resonance frequency is changed by short-circuiting an optional position of the earth plate 4 and the radiation metallic plate 1 by a short-circuit pin 5. Thus, when a resonance frequency f0 is changed, it is easily changed by changing the short- circuit position by the short-circuit pin 5.

4. 发明专利

JPH0242894A RHYTHM SENSOR 失效
公开(公告)号：JPH0242894A
公开(公告)日：1990-02-13
申请号：JP8267889
申请日：1989-03-31
申请人： PIONEER KK TOHOKU
发明人： NAKAYAMA MASAHIRO , KOMATSUBARA MASAHIKO
IPC分类号： H04R1/00 , H04R3/00
摘要： PURPOSE:To recognize a rhythm without hindering music listening or performance by generating a mechanical vibration to be body-sensible by means of a vibrator according to a rhythm signal and press-contacting the vibrator to the inauditory part of a body. CONSTITUTION:A VCO 1 generates a sine wave or rectangular wave with a frequency according to a frequency setting signal from a control circuit 10, and an output is supplied to a rhythm generating circuit 2. The circuit 2 generates a pulse string signal based on a pulse interval based on the output of the VOC 1, a basic rhythm period from the circuit 11, a pulse width and pulse amplitude information, and the signal is outputted as the rhythm signal. The rhythm signal is amplified by an amplifier 3, it is supplied to a vibrating part 4, and a mechanical vibration corresponding to the rhythm signal is generated. A vibrator 41 of the vibrating part 4 is fixed to a band winding mounting member 42, wound around the arm, trunk, leg, etc., of a performer and wind- mounted to sticking members 43a and 43b.

5. 发明专利

JP2001028795A ZOOM MICROPHONE 失效
公开(公告)号：JP2001028795A
公开(公告)日：2001-01-30
申请号：JP19991599
申请日：1999-07-14
申请人： PIONEER ELECTRONIC CORP , PIONEER TOHOKU CORP
发明人： SHIDARA KAZUMI , SATO KOICHI , NAKAYAMA MASAHIRO
IPC分类号： H04R5/027 , H04R1/02 , H04R1/40 , H04R3/00
摘要： PROBLEM TO BE SOLVED: To provide a zoom microphone that is simple in the configuration and miniaturized and configured to be a so-called plug-in type. SOLUTION: The zoom microphone is provided with an L ch microphone 11L, a center microphone 11S and an R ch microphone 11R that are arranged parallel to a sound picking up face, resistors R1, R2 connected in series between a wire (a) of the L ch microphone 11L and a wire (b) of the R ch microphone 11R, a microphone side terminal s1 connected to the center microphone 11S, a resistor side terminal s2 connected to a connection part between the resistors R1, R2, and an earth terminal s3 connected to a reference level point via a capacitor C, and a changeover switch SW that is thrown to a position to connect the microphone side terminal s1 and the resistor side terminal s2 in a zoom mode or to a position to connect the resistor side terminal s2 and an earth terminal s3 in a stereo mode.

6. 发明专利

JPS6326889A DIGITAL AUDIO DISK PLAYER 失效
公开(公告)号：JPS6326889A
公开(公告)日：1988-02-04
申请号：JP17064386
申请日：1986-07-18
申请人： PIONEER ELECTRONIC CORP
发明人： NAKAYAMA MASAHIRO
IPC分类号： G11B27/34 , G10K15/04 , G11B27/00
摘要： PURPOSE:To easily select a desired music even if correlation between a music number and a music name is not known by reading the information of the music name or the music number from a storing means and displaying it when the information of the music number or the music name is designated and inputted. CONSTITUTION:The recorded information of a disk 1 is read by an optical pickup 2 and the information is demodulated by a demodulating circuit and supplied to a signal processing system. The demodulated output is inputted directly to a data output circuit 4 and the data of address information, etc., are extracted. Data extracted by the circuit 4 are stored in a memory device 6 through a controller 5. In such case, the controller 5 stores the music name information from an input device 7 correspondingly to the music number. At the time of playing a disk, the controller 5 moves a pickup 2 to an address position corresponding to the music number when the music number is designated by the input device 7. When the music name is inputted, corresponding the music number from the memory device 6 is displayed in a display device, and at the same time, the pickup 2 is moved to corresponding position.

7. 发明专利

JP2001160996A EARPHONE AND EARPHONE MICROPHONE 失效
公开(公告)号：JP2001160996A
公开(公告)日：2001-06-12
申请号：JP34103099
申请日：1999-11-30
申请人： PIONEER ELECTRONIC CORP , PIONEER TOHOKU CORP
发明人： NAKAYAMA MASAHIRO , SHIRATA ATSUSHI
IPC分类号： H04R1/10
摘要： PROBLEM TO BE SOLVED: To provide satisfactory earphone that can be mounted stably on ear, hardly causes position shift, and can have stable acoustic performance and an satisfactory sense of wearing. SOLUTION: The earphone 1 is provided with an earphone body section 11, that contains a loudspeaker and an ear hook section 12 of a curved shape that is wound on the outer circumferential part of an ear shell. A base end 11a of the earphone body section 11 supports the ear hook section 12 freely turnably via a shaft section 11c at the upper part and from the lower part of which a cord 13 is extracted and at the side near the tip 11b of which a loudspeaker unit (not shown) is contained, and its upper part is covered by a loudspeaker cover section 11d. The width of the main body section 11 is narrower from the base end 11a with a width La toward the tip section 11b with a width Lb, and the thickness is increased. Furthermore, the tip section 11b is tilted toward the ear hole at mount. When the earphone 1 is mounted on the ear, it is half-inserted to the ear hole ditch and the tip section 11b and the ear hook section 12 clamps the ear, then the earphone is fixedly held so as to hardly cause position shift.

8. 发明专利

JP2001268684A HANDSET 失效
公开(公告)号：JP2001268684A
公开(公告)日：2001-09-28
申请号：JP2000083216
申请日：2000-03-21
申请人： PIONEER ELECTRONIC CORP , PIONEER TOHOKU CORP
发明人： NAKAYAMA MASAHIRO , KANEKO TAKASHI
IPC分类号： H04R3/00 , H04M1/21 , H04M1/60
摘要： PROBLEM TO BE SOLVED: To provide a handset which is usable for various purposes. SOLUTION: The handset extracts a circumferential sound as a transmitter signal and outputs it to a phase inverter and a changeover switch. Further, the sound extracted by the transmitter is supplied to a transmitter receiver. The transmitter signal inputted to the phase converter is inverted in phase there and outputted to the changeover switch. Then one of the transmitter signal from the transmitter (phase uninverted) and the transmitter signal having its phase inverted by the phase converter is outputted to a composing unit through the changeover switch according to its setting state. A receive signal is outputted from the transmitter receiver to the composing unit. The transmitter signal and receive signal inputted to the composing unit are put together and supplied as a composite signal to the receiver.

9. 发明专利

JP2000050381A AUDIO AMPLIFIER 失效
公开(公告)号：JP2000050381A
公开(公告)日：2000-02-18
申请号：JP21798598
申请日：1998-07-31
申请人： PIONEER ELECTRONIC CORP , PIONEER TOHOKU CORP
发明人： SAWADA YOSHIO , NAKAYAMA MASAHIRO , ASAKURA MICHIHITO , KANEKO TAKASHI
IPC分类号： H04R1/10 , H04R3/02
摘要： PROBLEM TO BE SOLVED: To provide an audio signal amplifier with excellent sound collection and reproduction. SOLUTION: The audio amplifier is provided with a two-way electric cable 18 having the left right earphones 14, 15 and unidirectional microphones 16, 17 and with a main body 19 incorporating a signal amplifier circuit. An input output jack 21 provided to the head of the electric cable 18 connects removably to an input output connector provided to a side face of the main body 19. The part of the electric cable 18 from the input output jack 21 to the midway near the microphones 16, 17 is configured as a single cable. One part of the two-way of the electric cable 18 is provided with the microphone 16 and the earphone 14 at a prescribed interval and the other part of the two-way of the electric cable 18 is provided with the microphone 17 and the earphone 15 at a prescribed interval.

10. 发明专利

JPH0583032A CRYSTAL OSCILLATION CIRCUIT 失效
公开(公告)号：JPH0583032A
公开(公告)日：1993-04-02
申请号：JP24195891
申请日：1991-09-20
申请人： PIONEER ELECTRONIC CORP
发明人： NAKAYAMA MASAHIRO , SHIDARA KAZUMI , KOMATSUBARA MASAHIKO
IPC分类号： H03B5/32 , H03C3/22 , H04B1/034
摘要： PURPOSE:To attain excellent oscillation without interference of plural crystal oscillators and without need of a correction circuit by providing a short-circuit means short-circuiting the crystal oscillators except one crystal oscillator among the plural crystal oscillators to the crystal oscillation circuit. CONSTITUTION:When a basic frequency control signal Vfd is at, e.g. a low level and an input terminal a1 and an output terminal y1 of a switching circuit S2 are conductive, a VCO 13 is oscillated based on a reactance component of a crystal oscillator X1 and other crystal oscillator X2 is short-circuited via terminals a2, y2. Then when the basic frequency control signal Vfd is at a high level and an input terminal b1 and the output terminal y1 of the switching circuit S2 are conductive, the VCO 13 is oscillated based on a reactance component of a crystal oscillator X2 and the one crystal oscillator X1 is short-circuited via terminals b2, y2. Since the short-circuited crystal oscillator gives no effect on the crystal oscillator during oscillation, the interference between the crystal oscillators is avoided.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式