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71. 发明专利

JPH04327717A HOT WATER SUPPLY APPARATUS 失效
公开(公告)号：JPH04327717A
公开(公告)日：1992-11-17
申请号：JP9879591
申请日：1991-04-30
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： YOSHIMURA YASUO , NAGAMOTO SHUNICHI , MURAMATSU TAKESHI , MATSUMURA TERUE
IPC分类号： F23N5/24 , F23N5/26 , H04Q9/00
摘要： PURPOSE:To inform an abnormality in a hot water supply machine when it occurs and, at the same time, carry out the installation work and maintenance easily of a hot water supply machine which transmits and receives abnormality signals with a radio wave output on the level of a very weak radio station. CONSTITUTION:Each hot water supply machine 1 is provided with a safety device 6 and transmission and reception equipment 4. Each transmission and reception equipment 4 transmits an abnormality signal by radio from the safety device 6 of its own and, at the same time, the output of the radio waves is to the extent that they can only reach the neighboring hot water supply machines 2, 3,.... Accordingly the hot water supply machine 2 receives the radio waves and transmits them in turn to the neighboring hot water supply machine. In this way an abnormality signal is transmitted t0 each of the hot water supply machines, 1-3,..., and finally an informing device 12 is provided with a receiver 13 that receives abnormality signal. With this arrangement each hot water supply machine can cope with the generation of abnormality in each hot water supply machine and, at the same time, effects of radio waves on the environment in the vicinity can be reduced and, at the same time, the works of installation and maintenance can be done easily.

72. 发明专利

JPH04326290A HOT WATER SUPPLIER SYSTEM 失效
公开(公告)号：JPH04326290A
公开(公告)日：1992-11-16
申请号：JP9542991
申请日：1991-04-25
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： NAGAMOTO SHUNICHI , MURAMATSU TAKESHI , MATSUMURA TERUE , YOSHIMURA YASUO
IPC分类号： F23N5/26 , H04Q9/00
摘要： PURPOSE:To obtain the convenience of radio control and the reliability of cable control concerning the hot water supplier provided with both remote controllers enabling remote control and remote monitor due to cables and radio waves. CONSTITUTION:A hot water supplier 11 is composed of a cable type transmitter/ receiver 13 for transmitting/receiving control signals and monitor signal through a signal line to the remote controllers for the remote control of the hot water supplier 11 and the remote monitor of the operating state, hot water supply controller 12 to control hot water supply based on the received control signal, signal line connecting terminals 18 and 19 for connecting the cable type transmitter/receiver 13 and the signal line from the outside of the main body of the hot water supplier 11, cable remote controller 21 enabling communication with the cable transmitter/receiver 13 while being connected with the signal line connecting terminals 18 and 19, radio transmission/reception unit 24 separately provided outside the hot water supplier 11 so as to enable communication with the cable transmitter/receiver 13 while being connected with the signal line connecting terminals 18 and 19 by signal lines, and radio remote controller to execute communication with the radio transmission/reception unit 24 by using radio waves.

73. 发明专利

JPH10224242A RADIO EQUIPMENT 失效
公开(公告)号：JPH10224242A
公开(公告)日：1998-08-21
申请号：JP2068997
申请日：1997-02-03
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： HORIIKE YOSHIO , YOSHIKAWA YOSHISHIGE , MATSUMURA TERUE
IPC分类号： H04B1/10 , H04B1/26 , H04B1/40 , H04B17/00 , H04B17/318 , H04B17/345
摘要： PROBLEM TO BE SOLVED: To prevent battery consumption due to a wrong decision by identifying whether the output level of an FM receiver is a prescribed threshold level or more and deciding whether it is noise or a carrier signal, from the ratio between high and low levels which are included within a prescribed period of the output. SOLUTION: An FM-receiving means outputs a signal that corresponds to the intensity of a receiving radio wave, together with a demodulation output terminal 3 and, for instance, has an output terminal 4 on the IF final stage. A comparator 7 identifies whether or not a signal level that is outputted by the terminal 4 is a prescribed threshold level or more. A supervisory means 11 monitors an output of the comparator 7 in a prescribed period. The amplitude of a signal which is a desired signal and is subject to FM modulation does not change and randomly changes as a time goes, when the signal receives noise. Then, a deciding means surely decides whether it is noise or a carrier signal, based on the ratio of high and low levels within a supervised period.

74. 发明专利

JPH10112887A RADIO DATA COLLECTING SYSTEM 失效
公开(公告)号：JPH10112887A
公开(公告)日：1998-04-28
申请号：JP26589296
申请日：1996-10-07
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： NAKAGAWA MASAFUMI , SUEMATSU TAKAYUKI , MATSUMURA TERUE , YAMAMOTO MASAHIRO
IPC分类号： G08C17/00 , H04Q9/00
摘要： PROBLEM TO BE SOLVED: To provide a radio data collecting system which does not need a particular repeater between a main device and a terminal device. SOLUTION: Each repeater functioned terminal device 4a and 4b is provided with a radio communication means 41 which communicates with a main device 1 and repeater functioned terminal devices except itself by radio, a storage means 42 which stores an identification code that preliminarily defines relations among devices, an identification code deciding means 43 that decides which it is between receiving and relay based on an identification code that is included in a receiving telegraphic message that is received from the main device or a repeater functioned terminal device and a relay controlling means 47 which controls relay when it is decided as a relay. For instance, when a telegraphic message from the device 4b includes the 3rd identification code, the device 4a receives the telegraphic message, and when it further includes the 1st identification code, it needs relay and the device 4a adds the 2nd identification code to the receiving telegraphic message and sends it to the device 1. The device 1 recognizes that the telegraphic message is from the device 4b because the receiving telegraphic message includes the 1st identification code.

75. 发明专利

JPH1093721A RADIO COMMUNICATION SYSTEM FOR HOME EQUIPMENT 失效
公开(公告)号：JPH1093721A
公开(公告)日：1998-04-10
申请号：JP24174196
申请日：1996-09-12
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： HORIIKE YOSHIO , SUEMATSU TAKAYUKI , MATSUMURA TERUE
IPC分类号： H04Q9/00 , H04B7/24 , H04M11/00
摘要： PROBLEM TO BE SOLVED: To transmit operating information, etc., of the plural equipment of different communication protocols to a center by providing a protocol selecting means to respective equipments for selecting a communication protocol corresponding to the destination of information. SOLUTION: The plural equipments consisting of a first group link-connecting by a first protocol and provided with a telephone line terminating device (T-NCU) 15 and a gas meter and a second group link-connecting by a second protocol and being gas equipments, such as a gas hot-water supplier 16, is provided with a protocol-selecting means to select which of the first and second protocol to use for link-connecting between the first and second groups, based on the destination. After transmitting the meter value of a gas meter by the protocol of the first group, T-NCU 15 switch to the protocol of the second group to transmit equipment which monitor information such as operating information, fault information of a gas equipment to the center, while holding a telephone line.

76. 发明专利

JPH09130373A RADIO COMMUNICATION SYSTEM 失效
公开(公告)号：JPH09130373A
公开(公告)日：1997-05-16
申请号：JP28556395
申请日：1995-11-02
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： YAMAMOTO MASAHIRO , SUEMATSU TAKAYUKI , MATSUMURA TERUE , NAKAGAWA MASAFUMI
IPC分类号： H04B1/38 , H04L7/00 , H04L7/10
摘要： PROBLEM TO BE SOLVED: To surely perform synchronization correction communication even when communication is interfered. SOLUTION: Upon receiving the output of a timer A4, the frequency switching means A10 of a radio communication A1 selects one frequency other than the frequency selected in a previous time among the frequencies stored in a frequency information storage means A9 and performs the intermittent standby operation of 30 seconds. When the output of the timer B16 is received, the frequency switching means B18 of the radio communication means B2 selects one frequency other than the frequency selected in the previous time among the frequencies stored in the frequency information storage means B17 and performs the intermittent standby operation of 30 seconds. The operation is performed in the synchronization correction communication every ten minutes as well.

77. 发明专利

JPH0993029A ANTENNA DEVICE 失效
公开(公告)号：JPH0993029A
公开(公告)日：1997-04-04
申请号：JP24287295
申请日：1995-09-21
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： BAN YASUHIRO , YOKOAJIRO YOSHIYUKI , HORIIKE YOSHIO , MATSUMURA TERUE
IPC分类号： H01Q13/08 , H01Q1/24 , H01Q1/38
摘要： PROBLEM TO BE SOLVED: To make radio equipment thin by reducing the number of parts. SOLUTION: Inside a resin panel 2 fitted on the opening face of a resin casing 1 to form the casing of radio equipment, a ground panel conductor 4 is adhered and fixed, and outside the panel 2, a radiating conductor 5 is adhered and fixed. Besides, the ground panel conductor 4 and the radiating conductor 5 are grounded and connected through the resin panel by a through hole 9, and a feeder line 6 is connected to the radiating conductor 5. Thus, a planar inverse antenna can be formed on the resin panel and the number of parts can be reduced.

78. 发明专利

JPH0983584A DATA DEMODULATION DEVICE 失效
公开(公告)号：JPH0983584A
公开(公告)日：1997-03-28
申请号：JP23371995
申请日：1995-09-12
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： YOSHIMURA YASUO , HORIIKE YOSHIO , YOKOAJIRO YOSHIYUKI , MATSUMURA TERUE
IPC分类号： H04L27/14 , H04L27/22
摘要： PROBLEM TO BE SOLVED: To adjust a local oscillation frequency so that the intermediate frequency signal comes to the center of a reception band filter. SOLUTION: This device is provided with a first mixing means 3 and a second mixing means 8, which mix and output received modulation signals and signals from a first local oscillation means 6, and a third mixing means 5 and a fourth mixing means 12, which mix the outputted signal with a signal from a second local oscillation means 10 and output the intermediate frequency signal. This device is composed of a pulse waveform shaping means 15 converting the intermediate frequency signal into a pulse waveform, a pulse number measuring means 18 measuring the number of pulses during time (t) and a frequency adjusting means 19 outputting a signal for adjusting the oscillation frequency of the first local oscillation means 6 based on a difference between a measurement value from the pulse number measuring means and a reference value.

79. 发明专利

JPH08139773A FSK RECEPTION DEVICE 失效
公开(公告)号：JPH08139773A
公开(公告)日：1996-05-31
申请号：JP27128894
申请日：1994-11-04
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： YOKOAJIRO YOSHIYUKI , HORIIKE YOSHIO , YOSHIMURA YASUO , MATSUMURA TERUE
IPC分类号： H04L27/14 , H04B1/30
摘要： PURPOSE: To detect deviation of an intermediate frequency signal with simple constitution and control a local oscillation frequency by correcting an oscillation frequency in the direction wherein the difference between the counting result of a pulse quantity measuring means and the predetermined reference number of pulses becomes 0. CONSTITUTION: When the output of a band-pass filter 14 is larger than a specific level, a detection means 17 generates an output and the pulse quantity measuring means 18 is actuated. Then the number of pulses outputted from a pulse waveform shaping means 15 is measured for a certain predetermined time. Here, the shaping means 15 amplifies the output of the band-pass filter 14 and converts it into a pulse waveform by using a comparator. A frequency-voltage converting means 16 converts the frequency variation of the input into voltage variation and imposes FSK demodulation, and the demodulated signal is outputted to an output terminal 20. The number of pulses measured by the measuring means 18, on the other hand, is inputted to a frequency correcting means 19 to calculate an error in the predetermined reference number of pulses. Then a control voltage corresponding to the error is generated at the filter 14 to eliminate the error.

80. 发明专利

JPH08130533A RECEIVER 失效
公开(公告)号：JPH08130533A
公开(公告)日：1996-05-21
申请号：JP26715594
申请日：1994-10-31
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： YAMAMOTO MASAHIRO , MATSUMURA TERUE , YOKOAJIRO YOSHIYUKI , HORIIKE YOSHIO
IPC分类号： H04L7/00 , H04B7/26 , H04L7/02
摘要： PURPOSE: To make the receiver be immune to noise and to improve reliability by maintaining the pulse width or pulse interval of a received signal. CONSTITUTION: A pulse measuring means 3 measures length (pulse width or pulse interval) between the edges of a bit synchronizing signal. An input pulse comparing means 4 judges whether or not an error between the measured pulse width or pulse interval and previously determined pulse width or pulse interval is within a certain fixed range. When the error is outside the fixed range, an error omitting means 10 aborts one of 'maximum values' or 'minimum values' stored in a pulse storage means 5 from the memory based upon an output signal from a count pulse comparing means 9. Then the means 3 newly fetches an one-bit synchronizing signal based upon the signal and measures the pulse width or pulse interval of the inputted signal.

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