US7133705B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable power amplifier
Assignee: Panasonic Holdings Corp
•
Filing: 2002-05-23
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Granted: 2006-11-07
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Expires: 2022-05-23
Abstract
Abstract A portable power amplifier includes portable encapsulating cases, a printed board incorporated in those encapsulating cases, and a power amplifying device mounted on this printed board. An antenna switch and an antenna are provided near the power amplifying device, which is connected to those components in a pattern. This structure improves heat dissipation efficiency of the portable power amplifier.
Inventors
- 👤 Terumoto Akatsuka
- 👤 Keisuke Utsunomiya
- 👤 Haruki Owaki
- 👤 Motoyoshi Kitagawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:56
CPC Classifications
H; H05; H05K; H05K7/00; H05K7/14; H05K7/1417; H01; H01P; H01P1/00; H01P1/10; H01P1/15; H03; H03F; H03F1/00; H03F1/30; H05K5/00; H05K5/06; H05K7/20; H05K7/2039; H05K7/20436; H05K7/20445; H05K7/205; H03F2200/00; H03F2200/294; H03F2200/372; H03F2200/429
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
98 words
A portable power amplifier comprising: a printed board disposed in a shielding case, said shielding case including a side plate and a top plate for covering a component side of said printed board, said printed board having an end including a soldering section, and existing between said side plate and said soldering section is a space for being filled with solder via capillary action; a power amplifying device mounted to said printed board; and a heat resisting component disposed in a vicinity of said power amplifying device and coupled to said power amplifying device via heat conductive material.
Claim 2
Dependent Claim
98 words
A portable power amplifier comprising: a printed board disposed in a shielding case, said shielding case including a side plate and a top plate for covering a component side of said printed board, said printed board having an end including a soldering section, and existing between said side plate and said soldering section is a space for being filled with solder via capillary action; a power amplifying device mounted to said printed board; and a heat resisting component disposed in a vicinity of said power amplifying device and coupled to said power amplifying device via heat conductive material.
Claim 3
Dependent Claim
29 words
The portable power amplifier according to claim 1 , further comprising: a burr extending from said side plate toward said soldering section for being connected with said soldering section.
Claim 4
Dependent Claim
35 words
The portable power amplifier according to claim 2 , wherein said top plate includes a part that is cut and bent, with said part being in contact with a top of said power amplifying device.
Claim 5
Dependent Claim
79 words
The portable power amplifier according to claim 3 , further comprising: a high frequency circuit in a vicinity of said power amplifying device, wherein said top plate further includes (i) another part that is cut and bent, with said another part defining a partition between said power amplifying device and said high frequency circuit, and (ii) a hole, produced by the cutting and bending of said another part, that is on a power amplifying device side of said partition.
Claim 6
Dependent Claim
62 words
The portable power amplifier according to claim 4 , further comprising: an air intake hole in a vicinity of said soldering section, said air intake hole being in said side plate on a high frequency circuit side of said partition; and an air outlet hole in a vicinity of said power amplifying device, said air outlet hole being in said top plate.
Claim 7
Dependent Claim
19 words
The portable power amplifier according to claim 5 , wherein said side plate is rougher than said top plate.
Claim 8
Dependent Claim
18 words
The portable power amplifier according to claim 6 , wherein said shielding case comprises a metallic outer case.
Claim 9
Dependent Claim
101 words
The portable power amplifier according to claim 2 , further comprising: a high frequency circuit in a vicinity of said power amplifying device; a partition between said power amplifying device and said high frequency circuit; a hole, in said top plate, on a power amplifying device side of said partition; an air intake hole in a vicinity of said soldering section, said air intake hole being in said side plate on a high frequency circuit side of said partition; and an air outlet hole in a vicinity of said power amplifying device, said air outlet hole being in said top plate.
Claim 10
Dependent Claim
19 words
The portable power amplifier according to claim 8 , wherein said high frequency circuit comprises a voltage controlling oscillator.
Claim 11
Dependent Claim
23 words
The portable power amplifier according to claim 2 , further comprising: a voltage controlling oscillator in a vicinity of said power amplifying device.
Claim 12
Dependent Claim
15 words
The portable power amplifier according to claim 2 , wherein said shielding case is metallic.
Claim 13
Dependent Claim
35 words
The portable power amplifier according to claim 1 , wherein said top plate includes a part that is cut and bent, with said part being in contact with a top of said power amplifying device.
Claim 14
Dependent Claim
76 words
The portable power amplifier according to claim 1 , further comprising: a high frequency circuit in a vicinity of said power amplifying device, wherein said top plate includes (i) a part that is cut and bent, with said part defining a partition between said power amplifying device and said high frequency circuit, and (ii) a hole, produced by the cutting and bending of said part, that is on a power amplifying device side of said partition.
Claim 15
Dependent Claim
62 words
The portable power amplifier according to claim 13 , further comprising: an air intake hole in a vicinity of said soldering section, said air intake hole being in said side plate on a high frequency circuit side of said partition; and an air outlet hole in a vicinity of said power amplifying device, said air outlet hole being in said top plate.
Claim 16
Dependent Claim
19 words
The portable power amplifier according to claim 13 , wherein said high frequency circuit comprises a voltage controlling oscillator.
Claim 17
Dependent Claim
59 words
The portable power amplifier according to claim 1 , wherein said shielding case is metallic, and further comprising: a filter coupled to an output terminal of said power amplifying device, said filter including chip components, with at least one of said chip components being between said output terminal and grounding, and with said grounding being near said shielding case.
Claim 18
Dependent Claim
36 words
The portable power amplifier according to claim 16 , wherein said filter includes a chip inductor coupled to said output terminal of said power amplifying device, with said chip inductor being reflow-soldered to said printed board.
Claim 19
Dependent Claim
24 words
The portable power amplifier according to claim 16 , further comprising: a pattern inductor coupled to said output terminal of said power amplifying device.
Claim 20
Dependent Claim
19 words
The portable power amplifier according to claim 1 , wherein said side plate is rougher than said top plate.
Claim 21
Dependent Claim
28 words
The portable power amplifier according to claim 2 , wherein said top plate includes a part that is in contact with a top of said power amplifying device.
Claim 22
Dependent Claim
52 words
The portable power amplifier according to claim 1 , wherein said shielding case includes a first hole and a second hole, with said power amplifying device being positioned between said first hole and said second hole so as to be cooled by air entering said first hole and exiting said second hole.
Claim 23
Dependent Claim
42 words
The portable power amplifier according to claim 1 , further comprising: an audio input device; and an audio output device disposed above said audio input device, wherein said power amplifying device is between said audio input device and said audio output device.
Claim 24
Dependent Claim
26 words
The portable power amplifier according to claim 1 , further comprising: a chip capacitor between a power control terminal of said power amplifying device and grounding.
Claim 25
Dependent Claim
26 words
The portable power amplifier according to claim 1 , further comprising: a chip capacitor between a power supply terminal of said power amplifying device and grounding.
Claim 26
Dependent Claim
33 words
The portable power amplifier according to claim 1 , further comprising: an impedance matching circuit coupled to an input terminal of said power amplifying device, said impedance matching circuit including a pattern inductance.
Claim 27
Dependent Claim
35 words
The portable power amplifier according to claim 1 , further comprising: an impedance matching circuit coupled to an input terminal of said power amplifying device, said impedance matching circuit including chip components that are reflow-soldered.
Claim 28
Dependent Claim
28 words
The portable power amplifier according to claim 1 , further comprising: a dc cut-off chip capacitor coupled in series to an input terminal of said power amplifying device.
Claim 29
Dependent Claim
33 words
The portable power amplifier according to claim 1 , wherein said shielding case is metallic, and further comprising: a grounded chip component, with grounding for said chip component being near said shielding case.
Claim 30
Dependent Claim
17 words
The portable power amplifier according to claim 1 , wherein said shielding case comprises an outer case.
References Cited (Backward Citations)
EP0393236A1
Cited
JPH03263901A
Cited
JP2624362B2
Cited
EP0506122A2
Cited
JPH0541586A
Cited
US5552636A
Cited
US5379185A
Cited
US5633786A
Cited
JP2925475B2
Cited
JPH09107203A
Cited
US5748455A
Cited
US6501019B2
Cited
JPH11204970A
Cited
US6025991A
Cited
US20020089380A1
Cited
US6134110A
Cited
US6600663B1
Cited
US6504727B1
Cited
US6198444B1
Cited
US7061774B2
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2009-11-06 | 2010-05-08 | 2010-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2013-11-06 | 2014-05-08 | 2014-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2017-11-06 | 2018-05-08 | 2018-11-07 | $7700.00 | Window Closed / Lapsed |