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81. 发明专利

JPS59152793A Microphone 失效
标题翻译：麦克风
公开(公告)号：JPS59152793A
公开(公告)日：1984-08-31
申请号：JP2683283
申请日：1983-02-18
申请人： Matsushita Electric Ind Co Ltd
发明人： FUJIMURA KATSUNORI , MATSUMOTO MICHIO
IPC分类号： H04R1/00 , H01S5/00 , H04R23/00
CPC分类号： H04R23/008
摘要： PURPOSE:To stabilize photovoice conversion by reflecting laser light by a diaphragm arranged in parallel with output plane of a semiconductor laser controlled to a prescribed temperature, feeding back the light positively to an active substance in the laser and photoelectric-converting the output change caused by interference. CONSTITUTION:The laser light is reflected in rsponse to acoustic vibration on a diaphragm 21 arranged in parallel with the output plane of the semiconductor laser 22. The reflected laser light is fed back positively to the active substance of the laser 22, the output causing a change by interference is led to an optical fiber 19, photoelectric-converted and amplified by a circuit (not shown), and outputted as a voice current through a band pass filter. On the other hand, a temperature sensor 17 is provided near the semiconductor laser 22 and the temperature is kept constant by changing the direction of current of a Peltier element 18 foward and reverse so as to heat or cool the laser 22. Further, a corrugated heat sink 20 is formed. Then, the mode jumping of the semiconductor element due to temperature change is prevented for stabilizing the output.
摘要翻译：目的：通过与被控制在规定温度的半导体激光器的输出平面平行设置的光阑反射激光来稳定照相变换，将光反射回激光中的活性物质，并对由干扰。构成：在与半导体激光器22的输出平面平行布置的隔膜21上的声波反射中反射激光。反射的激光被正反馈地馈送到激光器22的活性物质，输出引起通过干扰的变化被导入光纤19，被光电转换并由电路（未示出）放大，并通过带通滤波器作为语音电流输出。另一方面，在半导体激光器22的附近设置有温度传感器17，通过改变珀耳帖元件18的电流方向并反向来保持温度恒定，从而加热或冷却激光器22.此外，波纹状形成散热器20。然后，防止由于温度变化导致的半导体元件的模式跳跃，从而使输出稳定。

82. 发明专利

JPS58240B2 失效
公开(公告)号：JPS58240B2
公开(公告)日：1983-01-05
申请号：JP15855379
申请日：1979-12-06
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： NAONO HIROYUKI , IBARAKI SATORU , MATSUMOTO MICHIO , YAMAMOTO HIROSHI , SUZUMURA MASAKI
IPC分类号： H04R17/02 , H04R17/00

83. 发明专利

JPS57203400A MICROPHONE DEVICE 失效
公开(公告)号：JPS57203400A
公开(公告)日：1982-12-13
申请号：JP8788481
申请日：1981-06-08
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： MATSUMOTO MICHIO
IPC分类号： H04R23/00
摘要： PURPOSE:To perform the positioning of a vibration diap]hragm with high accuracy in terms of the distance and the parallelism, by controlling the position of the vibration diaphragm to a semiconductor laser in terms of the distance and the parallelism with the static electricity obtained by applying the voltage between the vibration diaphragm and an electrode. CONSTITUTION:A vibration diaphragm 13 is previously set in parallel to the position at the front of an output of a semiconductor laser 10 with a space secured to the laser 10. The voltage is applied between the film 13 and a back plate electrode 12 to obtain the static electricity. The diaphragm 13 is attracted to the electrode 12, i.e., toward the semiconductor 10. In this case, the bias voltage that is decided in a single way and applied between the diaphragm 13 and a center electrode 31 of the electrode 12. The distance between the diaphragm 13 and the semiconductor 10 is decided by the electrostatic power. At the same time, the voltage is applied occasionally between the diaphragm 13 and each of the electrodes 32-35 of the electrode 12. With the electrostatic power thus obtained, the parallelism is decided between the diaphragm 13 and the semiconductor laser 10 at the center part.

84. 发明专利

JPS5355113A MICROPHONE 失效
公开(公告)号：JPS5355113A
公开(公告)日：1978-05-19
申请号：JP13075176
申请日：1976-10-29
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： NAONO HIROYUKI , IBARAKI SATORU , MATSUMOTO MICHIO , ATOJI NOBUHISA
IPC分类号： H04R17/02 , H04R7/16 , H04R17/00 , H04R31/00
摘要： PURPOSE:To achieve the improvement in sensitivity and lower mechanical vibration noises applied to a microphone in a microphone using a piezoelectric high polymer film as a diaphragm.

85. 发明专利

JPS5288326A MICROPHONE 失效
公开(公告)号：JPS5288326A
公开(公告)日：1977-07-23
申请号：JP523076
申请日：1976-01-19
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： SUGUNO HIROYUKI , MATSUMOTO MICHIO , IBARAKI SATORU
IPC分类号： H04R17/02
摘要： PURPOSE:To improve the sensitivity in wide frequency bands by connecting a plurality of microphon elements in series.

86. 发明专利

JPS51143316A ACOUSTIC TRANSDUCER OF ELECTROKINETIC TYPE 失效
公开(公告)号：JPS51143316A
公开(公告)日：1976-12-09
申请号：JP6797775
申请日：1975-06-04
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： SUGUNO HIROYUKI , ATOCHI NOBUHISA , MATSUMOTO MICHIO
IPC分类号： H04R9/00 , H04R7/12 , H04R9/04
摘要： PURPOSE:To better a response of a drive plate for an input signal; to prevent a split oscillation; and to improve a directivity, by a way in which whole area of an oscillating plate oscillates uniformly.

87. 发明专利

JPS512414A 失效
公开(公告)号：JPS512414A
公开(公告)日：1976-01-10
申请号：JP4405274
申请日：1974-04-18
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： ATOCHI NOBUHISA , SUGUNO HIROYUKI , NAKAO KANJI , ARAYA SHUZO , MATSUMOTO MICHIO , IKEUCHI KEIJI
IPC分类号： H04R1/26

88. 发明专利

JPH10200580A METHOD FOR REPRODUCING VOICE PACKET 失效
公开(公告)号：JPH10200580A
公开(公告)日：1998-07-31
申请号：JP538297
申请日：1997-01-16
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： TAGAWA JUNICHI , MISAKI MASAYUKI , MATSUMOTO MICHIO
IPC分类号： G10L13/00 , G10L19/00 , H04L12/56 , G10L9/00 , G10L9/18
摘要： PROBLEM TO BE SOLVED: To suppress an output delay time at a receiver side and to further decrease a sound interruption due to a packet defect in the communication of a voice packet. SOLUTION: Upon receipt of a packet by a packet reception means 49, an additional information separate means 63 separates the packet into voice information and additional information. Then a voice-decoding means 52 decodes data of the packet. A transmission delay time calculation means 64 references a packet-generating time and a time of a clock 65 included in the additional information, to calculate a mean transmission delay time of each packet. An output delay time calculation means 66 references a talk spurt start/end flag and the transmission delay time, to calculate an output delay time of the voice packet. Furthermore, when an output delay time at the receiver side exceeds a predetermined value, an output delay time upper limit setting means 68 sets a maximum delay time and takes out the voice signal from a buffer memory 50, so that the voice signal is not interrupted.

89. 发明专利

JPH08286967A DIGITAL SIGNAL RECORDING AND REPRODUCING DEVICE 失效
公开(公告)号：JPH08286967A
公开(公告)日：1996-11-01
申请号：JP8529095
申请日：1995-04-11
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： TANIGUCHI HIROTSUGU , MIYASAKA SHUJI , MATSUMOTO MICHIO , TANAKA TSUNEO , KIDA KAZUE
IPC分类号： G06F12/00
摘要： PURPOSE: To monitor information including one recorded while monitoring without omission by monitoring recorded information in the past while continuing the recording of digital signal in a semiconductor memory. CONSTITUTION: This digital signal recording and reproducing device is constituted of a first clock generator 1 generating a first clock signal with a fixed frequency, the second clock generator 12 generating the second clock signal with the variable frequency, a first address generator 13 updating an address value synchronizing with the first clock signal, the second address generator 14 updating an address value synchronizing with the second clock signal, an IC memory 15 which is connected so as to permit a writing address to be the address value which is outputted from the first address generator 13 and permit a reading address to be the address value which is outputted from the second address generator 14, a subtractor 16 outputting a value obtained by subtracting the reading address value from the writing address value and a monitor device 17 monitoring the signal read from the IC memory 15.

90. 发明专利

JPH07271664A INFORMATION RECORDING AND REPRODUCING DEVICE 失效
公开(公告)号：JPH07271664A
公开(公告)日：1995-10-20
申请号：JP8592194
申请日：1994-03-30
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： TANAKA TSUNEO , MATSUMOTO MICHIO , NAGANO TOSHIHIKO , MIYASAKA SHUJI , KIDA KAZUE
IPC分类号： G06F12/06
摘要： PURPOSE:To write plural digital signals in a main memory using a semiconductor and read or erase them redundantly at the same time. CONSTITUTION:The information recording and reproducing device is provided with the semiconductor memory 7 which has input ports 71 and 71b, output ports 72a and 72b, and input ports 73a and 73b for erasure. Plural inputs are written in this semiconductor memory 7 temporarily through buffers 5a and 5b. The digital signals which are read out of the semiconductor memory 7 are read out through buffer memories 13a and 13b. At the same time, data in necessary areas are erased from the input ports 73a and 73b for erasure.

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