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公开(公告)号：DE69921883D1
公开(公告)日：2004-12-23
申请号：DE69921883
申请日：1999-04-16
Applicant: SONY CORP
Inventor： SATO NOBUO , SEKIKAWA YUJI , IMAMURA NORITOSHI
Abstract: As for a switching power source, by alternately turning on first and second MOS transistors (Q1, Q2), a resonance current flows to a primary winding (L1) of a transfonner (T), and an alternate current is transmitted to a secondary side (L2). With respect to an alternate signal generated in a secondary winding (L2), a gate voltage is applied so that third MOS transistor (Q3) and fourth MOS transistor (Q4) are conductive, respectively, while the polarity of the alternate signal is positive. Rectifying currents are flowed to a capacitor (Co) and a full-wave rectification is executed. Since a control signal for synchronous control is supplied from a signal source to control the first and second switching elements (Q1, Q2) via transformers (Ta, Tb), a switching timing can be accurately coincided with an on/off timing of a synchronous rectifying device by a simple circuit.
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公开(公告)号：DE69921883T2
公开(公告)日：2005-11-03
申请号：DE69921883
申请日：1999-04-16
Applicant: SONY CORP
Inventor： SATO NOBUO , SEKIKAWA YUJI , IMAMURA NORITOSHI
Abstract: As for a switching power source, by alternately turning on first and second MOS transistors (Q1, Q2), a resonance current flows to a primary winding (L1) of a transfonner (T), and an alternate current is transmitted to a secondary side (L2). With respect to an alternate signal generated in a secondary winding (L2), a gate voltage is applied so that third MOS transistor (Q3) and fourth MOS transistor (Q4) are conductive, respectively, while the polarity of the alternate signal is positive. Rectifying currents are flowed to a capacitor (Co) and a full-wave rectification is executed. Since a control signal for synchronous control is supplied from a signal source to control the first and second switching elements (Q1, Q2) via transformers (Ta, Tb), a switching timing can be accurately coincided with an on/off timing of a synchronous rectifying device by a simple circuit.
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公开(公告)号：JPH09294104A
公开(公告)日：1997-11-11
申请号：JP12913996
申请日：1996-04-25
Applicant: SONY CORP
Inventor： SATO NOBUO , ITO HIROCHIKA , KANAYAMA YOSHITAKA , KURODA SHINICHI
IPC: H01Q1/24 , H01Q1/36 , H01Q1/50 , H01Q9/32 , H01Q11/08 , H04B1/38 , H04B7/08 , H04B7/26 , H04W16/28 , H04W88/02
Abstract: PROBLEM TO BE SOLVED: To conduct excellent communication even when the antenna circuit is deteriorated due to the effect of a human body in the case that the antenna is retracted. SOLUTION: A 1st antenna 7 in the retracted state is energized so as to be acted like an antenna, and the 1st antenna 7 and a 2nd antenna 8 are operated independently in the retracted state. Thus, the diversity reception is conducted by using the 1st antenna 7 and the 2nd antenna 8, and even when the antenna characteristic of one antenna is deteriorated due to the effect of a human body in the retracted state, excellent communication is conducted by using a reception signal received by the other antenna.
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公开(公告)号：JPH09260921A
公开(公告)日：1997-10-03
申请号：JP9008196
申请日：1996-03-19
Applicant: SONY CORP
Inventor： ITO HIROCHIKA , SATO NOBUO , KANAYAMA YOSHITAKA , KURODA SHINICHI
Abstract: PROBLEM TO BE SOLVED: To obtain a high level at all times even when the antenna is retracted or extended in the antenna system and the portable radio equipment. SOLUTION: When the antenna is retracted, a rotary member 30 is turned to contain a 1st antenna into a main body 22 and the 1st antenna does not act like an antenna by the turning of the rotary member 30, and a 2nd antenna acts like an antenna by the turning of the rotary member 30, and when the antenna is extracted, the 1st antenna is extended from the main body 22 through the turning of the rotary member 30 and the 1st antenna acts like an antenna through the turning of the rotary member 30 and the 2nd antenna does not act like and antenna by the turning of the rotary member 30.
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公开(公告)号：JPH09238015A
公开(公告)日：1997-09-09
申请号：JP4381096
申请日：1996-02-29
Applicant: SONY CORP
Inventor： SATO NOBUO , ITO HIROCHIKA , KANAYAMA YOSHITAKA , KURODA SHINICHI
Abstract: PROBLEM TO BE SOLVED: To provide the antenna device in which deterioration in the characteris tic of the antenna system caused by the affect of a human body is relieved in the case of a linear antenna contained in a case and the portable radio equip ment to which the antenna system is mounted. SOLUTION: When a liner antenna 11 is contained in a case 15, a fixed connection end 25 of a channel shaped conductor 27 is connected mechanically and electrically or electromagnetically to a 2nd connection part 13, the linear antenna 11 and the channel shaped conductor 27 form a loop and a 1st connection part 12 of the linear antenna 11 is energized by being connected to a 1st feeding part 16 electrically or electromagnetically to allow the linear antenna 11 and the channel shaped conductor 27 to act like a loop antenna.
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Patent Agency Ranking
公开(公告)号：JPH0936633A
公开(公告)日：1997-02-07
申请号：JP20837095
申请日：1995-07-24
Applicant: SONY CORP
Inventor： KANAYAMA YOSHITAKA , SATO NOBUO , KURODA SHINICHI
Abstract: PROBLEM TO BE SOLVED: To increase the degree of freedom of shape of a plane antenna in which a dielectric is interposed between a radial conductor and a ground conductor profitably and to effectively use a space occupied by an antenna. SOLUTION: The dielectric 232 located between the ground conductor 231 and the radial conductor 233 of the plane antenna 230 incorporated in portable radio equipment is made of injection moldable synthetic resin. A cavity part 232c is formed so as to be provided in the inside of the dielectric 232, which reduces an effective dielectric constant.
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公开(公告)号：JPH0936629A
公开(公告)日：1997-02-07
申请号：JP20163595
申请日：1995-07-14
Applicant: SONY CORP
Inventor： SATO NOBUO , KANAYAMA YOSHITAKA , TSUDA SHINICHIRO , KURODA SHINICHI
Abstract: PROBLEM TO BE SOLVED: To stably keep a high radio talking quality at the time of using a portable radio device in an automobile. SOLUTION: This portable radio device is provided with a feeding member 32 between a high frequency circuit in an enclosure 10 and an antenna 31 stored in a protection case 33 and has an aperture 33w, through which the feeding member 32 is partially exposed, in the protection case is put on a placing part 201 of an antenna coupling device which couples the high frequency circuit of the portable radio device and an external antenna 1 through a prescribed feeder 2. A connection conductor 203 is arranged in such position on this placing part that it can come into contact with the feeding member of the portable radio device, and this connection conductor is connected to the, feeder, thereby electrically connecting the high frequency circuit of the portable radio device and the external antenna 1.
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公开(公告)号：JPH08222941A
公开(公告)日：1996-08-30
申请号：JP4477195
申请日：1995-02-09
Applicant: SONY CORP
Inventor： SATO NOBUO , KANAYAMA YOSHITAKA
Abstract: PURPOSE: To improve the work performance by projecting a part equivalent to a feeding point on a short-circuit conductor from an antenna side face so as to attain soldering in a short time in the antenna system having the feeding point on the short-circuit conductor. CONSTITUTION: A plane antenna 10 has a feeding section 12 on a short-circuit conductor 11 and the feeding section 12 is formed to be a rectangle and it is projected from an antenna side face (that is, side face of a dielectric material 3). When a feeder is connected by soldering, a wire of the feeder is directly soldered to the feeding section 12 projected from the antenna side face. In this case, since the feeding section 12 is projected from the antenna side face, heat caused by heating the feeding section 12 by a soldering iron or the like is hardly dissipated from the feeding section 12, resulting that solder is easily molten and soldering is conducted in a short time. Thus, the reduction in the conductor soldering strength is suppressed and exfoliation of the conductor of the feeding section 12 is prevented and the feeder soldering is conducted efficiently.
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公开(公告)号：JPH07283624A
公开(公告)日：1995-10-27
申请号：JP7219694
申请日：1994-04-11
Applicant: SONY CORP
Inventor： KAWAMURA TOSHIYUKI , TAKAHASHI TOSHINORI , ASAMI TOSHIYUKI , SATO NOBUO
Abstract: PURPOSE:To shorten the length in the axial direction of a coaxial dielectric resonator without giving a special form to it. CONSTITUTION:This device consists of a coaxial dielectrtc resonator 1 and a capacitance 9 which is on the outside of the coaxial dielectric resonator 1 and is connected in parallel with the coaxial dielectric resonator 1. The dielectric constant of a dielectric 7 of the coaxial dielectric resonator 1 is effectively raised to shorten the length of the coaxial dielectric resonator 1 by this capacitance 9.
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公开(公告)号：JPH05304402A
公开(公告)日：1993-11-16
申请号：JP260793
申请日：1993-01-11
Applicant: SONY CORP
Inventor： KAWAMURA TOSHIYUKI , TAKAHASHI TOSHINORI , SATO NOBUO
Abstract: PURPOSE:To prevent an input/output terminal formed by folding metal plate from shifting and falling when a dielectric filter is soldered on the substrate of an equipment which uses the filter. CONSTITUTION:Protruding parts 1a, 2a are provided on input/output terminals 1, 2, a hole part 3a is provided on a coupling substrate 3. The input/output terminals 1, 2 are soldered on the coupling substrate 3 by fitting the protruding parts 1a, 2a to the hole part 3a. Since the protruding parts 1a, 2a are fitted to the hole part 3a also when this soldered part is melted at the time of soldering on the substrate of an equipment which uses a dielectric filter, the input/ output terminals 1, 2 do not shift or fall. As the protruding parts 1a, 2a are fitted to the hole part 3a also at the time of assembling the dielectric filter, the positioning becomes easy, and the shift and fall of the input/output terminals 1, 2 from the coupling substrate 3 are prevented when the input/output terminals 1, 2 are soldered on the coupling substrate 3.
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