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1. 发明专利

JPS6075144A FILTER CIRCUIT 失效
公开(公告)号：JPS6075144A
公开(公告)日：1985-04-27
申请号：JP18401783
申请日：1983-10-01
申请人： NIPPON TELEGRAPH & TELEPHONE , SONY CORP
发明人： KATAGIRI KOUICHI , TSUKIMA IKUO , TSUCHIYA TAKAHISA , OOTSUKA BUNICHI
IPC分类号： H04B1/00 , H04B3/04 , H04B3/06 , H04L5/14 , H04M11/00 , H04M11/06
摘要： PURPOSE:To simplify the constitution of a filter circuit by providing a filter amplifier between an HPF and an equalizer for compensating delay characteristics of the HPF in a filter circuit suppressing incoming data leaked from a separator and extracting an outgoing data. CONSTITUTION:A carrier of an incoming data SD is modulated by a modulator 16 and data is fed to a center through the separator 15 as a signal of a low band. An incoming signal from the center is separated by the separator 15. Since the separated signal includes a leaked signal of the unnecessary incoming data and a high band noise in addition to the outgoing data, the incoming data is extracted from the output of the separator 15 through the HPF19 for suppressing low band, a filter amplifier 25 for compensating the gain of a group delay equalizer and suppressing a high frequency band noise, and a group delay equalizer 26 to equalize a group delay distortion of the HPF19. The extracted data is demodulated by a demodulator 21.

2. 发明专利

JPS6075879A TRAP CIRCUIT 失效
公开(公告)号：JPS6075879A
公开(公告)日：1985-04-30
申请号：JP18402283
申请日：1983-10-01
申请人： NIPPON TELEGRAPH & TELEPHONE , SONY CORP
发明人： KATAGIRI KOUICHI , TSUKIMA IKUO , TSUCHIYA TAKAHISA , OOTSUKA BUNICHI
IPC分类号： H04N7/08 , G09G1/28 , G09G5/02 , G09G5/04 , H04N7/025 , H04N7/03 , H04N7/035 , H04N7/081 , H04N7/16 , H04N7/173

3. 发明专利

JPS6075165A TELEPHONE LINE SWITCHING AND CONTROL CIRCUIT 失效
公开(公告)号：JPS6075165A
公开(公告)日：1985-04-27
申请号：JP18401683
申请日：1983-10-01
申请人： NIPPON TELEGRAPH & TELEPHONE , SONY CORP
发明人： SHIBUI MICHIROU , UENISHI TOSHIFUMI , TSUCHIYA TAKAHISA , OOTSUKA BUNICHI
IPC分类号： H04M11/00 , H04M11/06 , H04N7/173
摘要： PURPOSE:To attain the sure switching of a telephone line by confirming the incoming of a carrier of an outgoing data signal simultaneously when the average amplitude of the outgoing data signal is detected. CONSTITUTION:Since the average amplitude level of an output of a limiter amplifier circuit 37 is made higher than a preset level when the outgoing data signal is incoming normally to an information receiver 6, the output of logical 1 is obained at an amplitude detection circuit 38 and the output of logical 1 is obtained at a carrier detection circuit 40 because the carrier of the outgoing data signal is extracted from a band pass filter 39 at the same time. As a result, a switching operation signal is given to a line switch 4 from a drive circuit 43 as the output of a telephone line switching control circuit. If no outgoing data signal is incoming, even when the component of a comparatively large level due to noise is superposed, the output of the carrier detector does not go to logical 1 to cause no malfunction of changeover.

4. 发明专利

JPS6076853A SWITCH CONTROL CIRCUIT FOR TELEPHONE CIRCUIT 失效
公开(公告)号：JPS6076853A
公开(公告)日：1985-05-01
申请号：JP18402383
申请日：1983-10-01
申请人： NIPPON TELEGRAPH & TELEPHONE , SONY CORP
发明人： SHIBUI MICHIROU , UENISHI TOSHIFUMI , TSUCHIYA TAKAHISA , SUZUKI TOSHIO , OOTSUKA BUNICHI
IPC分类号： H04M11/00 , H04M11/06 , H04N7/173
摘要： PURPOSE:To prevent a fault of a line switch from affecting a power supply by providing a current controller to the power supply of the line switch which changes over a telephone circuit between a telephone set and an information receiver. CONSTITUTION:A line switch 4 changes over a telephone circuit 3 between a telephone set 1 and an MODEM8 in an adaptor 7 of an information receiver via a relay 16 and contacts 16A and 16B. The power supply of the relay 16 uses that of the information receiver. A protecting resistances 26 and a load driving transistor TR27 are provided between a power supply bus 21A and the relay 16. A current limiting TR25 whose base is connected to the joint between th resistance 26 and the TR27 is set between the bus 21A and the base of the TR27. Thus it is possible to limit a fault current to a level decided by the base-emitter voltage and the resistance 26 even through the relay 16 has a short circuit or a ground fault.

5. 发明专利

JPS6076847A DIFFERENTIAL LPF 失效
公开(公告)号：JPS6076847A
公开(公告)日：1985-05-01
申请号：JP18401883
申请日：1983-10-01
申请人： NIPPON TELEGRAPH & TELEPHONE , SONY CORP
发明人： SHIBUI MICHIROU , NODA KAZUAKI , TSUCHIYA TAKAHISA , OOTSUKA BUNICHI
IPC分类号： H04L27/22
摘要： PURPOSE:To perform the phase wave detection with no malfunction by having the comparison of phase between a descending data signal and a carrier reproduction signal to obtain two phase comparison outputs and then using these comparison outputs as a phase wave detection output after smoothing and the differential amplification. CONSTITUTION:A phase comparators 31 which receives a descending data signal S1 of an AGC circuit and a signal S2 of a carrier reproducing circuit produces comparison outputs S31 and S32 having phases opposite to each other. These comparison outputs are applied to an LPF34A and an LPF34B consiting of LPF parts 32A and 32B and operational amplifiers 33A and 33B. Thus the 1st and 2nd smoothing outputs S41 and S42 are obtained at filters 34A and 34B respectively. These outputs S41 and S42 are supplied to the reverse and non-reverse input terminals of differential amplifiers 35 and 36. A pair of logical signals S61 and S62 are obtained by the amplifiers 35 and 36 respectively. These logical signals are sent to a differential phase demodulating circuit in the form of a phase wave detection output.

6. 发明专利

JPS6076846A CARRIER REPRODUCING PLL 失效
公开(公告)号：JPS6076846A
公开(公告)日：1985-05-01
申请号：JP18402483
申请日：1983-10-01
申请人： NIPPON TELEGRAPH & TELEPHONE , SONY CORP
发明人： SHIBUI MICHIROU , NODA KAZUAKI , TSUCHIYA TAKAHISA , OOTSUKA BUNICHI
IPC分类号： H04L27/227
摘要： PURPOSE:To convert the output of a counter circuit into a carrier reproduction signal by comparing the frequency output of a counter circuit of a division ratio variable control type with a frequency corresponding to the carrier of a descending data signal and varying the division ratio of the counter circuit according to the result of said comparison. CONSTITUTION:A carrier reproducing circuit 22 gives two-multiplication to the output of an AGC circuit by a multiplying circuit 30 to obtain an output having a frequency double as much as the carrier frequency of a descending data signal. This output is received by a phase comparator 32 in the form of an input signal S1 through a BPF31 having a pass frequency approximate to a double frequency. The output S2 of the comparator 32 is converted into a DC output S3 by an averaging circuit 33 consisting of an LPF and applied to a level comparator 34. The comparison output S4 is applied to a dividing circuit 35 of a division variable type as a division ratio switching signal. An output pulse S5 of the circuit 35 is fed back to the circuit 32 and also transmitted to a phase wave detecting circuit as a reproduction carrier signal.

7. 发明专利

JPS6075878A IMPROVED CHARACTER COLORING CIRCUIT 失效
公开(公告)号：JPS6075878A
公开(公告)日：1985-04-30
申请号：JP18402183
申请日：1983-10-01
申请人： NIPPON TELEGRAPH & TELEPHONE , SONY CORP
发明人： SHIBUI MICHIROU , ICHIKAWA KIYOSHI , TSUCHIYA TAKAHISA , OOTSUKA BUNICHI
IPC分类号： G09G1/00 , G09G1/28 , G09G5/04 , H04N7/173 , H04N9/64 , H04N9/79

8. 发明专利

JPS6075877A IMPROVED CHARACTER COLORING CIRCUIT 失效
公开(公告)号：JPS6075877A
公开(公告)日：1985-04-30
申请号：JP18402083
申请日：1983-10-01
申请人： NIPPON TELEGRAPH & TELEPHONE , SONY CORP
发明人： KATAGIRI KOUICHI , HANAMOTO YOSHIHIRO , TSUCHIYA TAKAHISA , OOTSUKA BUNICHI
IPC分类号： G09G1/00 , G09G1/28 , G09G5/00 , G09G5/02 , G09G5/04 , H04N7/173

9. 发明专利

JPS6075871A IMPROVED CHARACTER COLORING CIRCUIT 失效
公开(公告)号：JPS6075871A
公开(公告)日：1985-04-30
申请号：JP18401983
申请日：1983-10-01
申请人： NIPPON TELEGRAPH & TELEPHONE , SONY CORP
发明人： SHIBUI MICHIROU , ICHIKAWA KIYOSHI , TSUCHIYA TAKAHISA , OOTSUKA BUNICHI
IPC分类号： G09G5/00 , G09G1/00

10. 发明专利

JPH06150085A IC MEMORY CARD 失效
公开(公告)号：JPH06150085A
公开(公告)日：1994-05-31
申请号：JP30345292
申请日：1992-11-13
申请人： SONY CORP
发明人： TSUCHIYA TAKAHISA , KATO SHINICHI , MIHASHI MASASHI , SASAKI TADAO , KONDO TAKANOBU , OTANI MASATOSHI , MARUKAWA KAZUYUKI
IPC分类号： B42D15/10 , G06F3/00 , G06K19/077
摘要： PURPOSE:To arbitrarily increase the recording capacity of the IC memory card. CONSTITUTION:Concerning an IC memory card 1 provided with an interface module 11 and memory modules 12 and 13, the IC memory card 1 is divided into the card-constitutive part 11 including the interface module and card- constitutive parts 12 and 13 including the memory modules. Then, the card- constitutive parts 11, 12 and 13 can be successively connected with connectors 14...14.

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