US5517676A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable radio and telephones having notches therein
Assignee: Toshiba Corp
•
Filing: 1992-12-23
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Granted: 1996-05-14
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Expires: 2012-12-23
Abstract
Abstract A portable radio and telephone equipment for transmitting and receiving an electric wave. The portable radio and telephone equipment includes: an antenna for transmitting and receiving an electromagnetic wave; a housing connected to the antenna, having a notch therein; and an internal circuit, connected to the antenna by way of the housing, for generating and receiving the electromagnetic wave. The portable radio and telephone equipment includes: an antenna for transmitting and receiving an electromagnetic wave; an upper portion of a housing connected to the antenna; and a lower portion of a housing connected to the upper portion of the housing via a conductor wire, so that the housing is divided into two portions in order to vary distribution pattern of the electromagnetic wave.
Inventors
- 👤 Syuichi Sekine
- 👤 Tadahiko Maeda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:11
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/02; H04B1/03; H01; H01Q; H01Q1/00; H01Q1/52; H01Q1/521; H01Q1/525; H01Q1/12; H01Q1/22; H01Q1/24; H01Q1/241; H01Q1/242; H01Q1/243; H01Q1/48
Claims Analysis
Total Claims: 37
Claim 1
Independent Claim
84 words
A portable radio equipment comprising: an antenna for transmitting and receiving an electromagnetic wave; a housing on which the antenna is mounted, said housing being made of an electromagnetic shielding material; a notch formed in the housing which modifies a radio frequency current flowing on the housing attributable to a radiation of the electromagnetic wave; and an internal circuit connected to the antenna by way of the housing for generating and receiving the electromagnetic wave, wherein said antenna is disposed outside of said notch.
Claim 2
Dependent Claim
84 words
A portable radio equipment comprising: an antenna for transmitting and receiving an electromagnetic wave; a housing on which the antenna is mounted, said housing being made of an electromagnetic shielding material; a notch formed in the housing which modifies a radio frequency current flowing on the housing attributable to a radiation of the electromagnetic wave; and an internal circuit connected to the antenna by way of the housing for generating and receiving the electromagnetic wave, wherein said antenna is disposed outside of said notch.
Claim 3
Dependent Claim
37 words
The portable radio equipment according to claim 1, wherein the antenna is approximately a quarter wavelength long and the notch is disposed at a distance of approximately a quarter wavelength from a top end of the housing.
Claim 4
Dependent Claim
17 words
The portable radio equipment according to claim 1, wherein the notch is approximately a quarter wavelength long.
Claim 5
Dependent Claim
18 words
The portable radio equipment according to claim 1, wherein a plurality of notches are disposed in the housing.
Claim 6
Dependent Claim
27 words
The portable radio equipment according to claim 1, wherein the electromagnetic shielding material includes an internal conductive body and an external conductive body having the notch therein.
Claim 7
Dependent Claim
23 words
The portable radio equipment according to claim 5, wherein the external conductive body and the internal conductive body are insulated from each other.
Claim 8
Dependent Claim
20 words
The portable radio equipment according to claim 5, wherein the internal body and the external body partially contact each other.
Claim 9
Dependent Claim
54 words
A portable radio equipment comprising: an antenna for transmitting and receiving an electromagnetic wave; a housing on which the antenna is mounted; means disposed in the housing for varying a distribution pattern of the electromagnetic wave; and means connected to the antenna by way of the housing for generating and receiving the electromagnetic wave.
Claim 10
Dependent Claim
54 words
A portable radio equipment comprising: an antenna for transmitting and receiving an electromagnetic wave; a housing on which the antenna is mounted; means disposed in the housing for varying a distribution pattern of the electromagnetic wave; and means connected to the antenna by way of the housing for generating and receiving the electromagnetic wave.
Claim 11
Dependent Claim
21 words
The portable radio equipment according to claim 1 or 8, wherein the antenna is a helical antenna disposed on the housing.
Claim 12
Dependent Claim
24 words
The portable radio equipment according to claim 1 or 8, wherein the antenna is a miniature type antenna disposed over a top of housing.
Claim 13
Dependent Claim
22 words
The portable radio equipment according to claim 1 or 8, wherein a nonconductive frame body is disposed on the electromagnetic shielding material.
Claim 14
Dependent Claim
25 words
The portable radio equipment according to claim 1 or 8, wherein the electromagnetic shielding material is made of a conductive coating or a conductive material.
Claim 15
Dependent Claim
42 words
The portable radio equipment according to claim 8, wherein the antenna is approximately a quarter wavelength long and the means for varying the distribution pattern is disposed at a distance of approximately a quarter wavelength from a top end of the housing.
Claim 16
Dependent Claim
22 words
The portable radio equipment according to claim 8, wherein the means for varying the distribution pattern is approximately a quarter wavelength long.
Claim 17
Dependent Claim
23 words
The portable radio equipment according to claim 8, wherein a plurality of means for varying the distribution pattern are disposed in the housing.
Claim 18
Dependent Claim
31 words
The portable radio equipment according to claim 8, wherein the electromagnetic shielding material includes an internal conductive body and an external conductive body having the means for varying the distribution pattern.
Claim 19
Dependent Claim
23 words
The portable radio equipment according to claim 16, wherein the external conductive body and the internal conductive body are insulated from each other.
Claim 20
Dependent Claim
20 words
The portable radio equipment according to claim 16, wherein the internal body and the external body partially contact each other.
Claim 21
Dependent Claim
63 words
A portable radio, comprising: an antenna for transmitting and receiving an electromagnetic wave; a housing on which the antenna is mounted, said housing including means for varying a distribution pattern of the electromagnetic wave, said means for varying operating without being supplied electromagnetic energy thereto; and means disposed within the housing and connected to the antenna for generating and receiving the electromagnetic wave.
Claim 22
Dependent Claim
63 words
A portable radio, comprising: an antenna for transmitting and receiving an electromagnetic wave; a housing on which the antenna is mounted, said housing including means for varying a distribution pattern of the electromagnetic wave, said means for varying operating without being supplied electromagnetic energy thereto; and means disposed within the housing and connected to the antenna for generating and receiving the electromagnetic wave.
Claim 23
Dependent Claim
42 words
The portable radio according to claim 19, wherein the antenna is approximately a quarter wavelength long and the means for varying the distribution pattern is disposed at a distance of approximately a quarter wavelength from a top end of the shielding housing.
Claim 24
Dependent Claim
21 words
The portable radio according to claim 19, wherein the means for varying the distribution pattern is approximately a quarter wavelength long.
Claim 25
Dependent Claim
39 words
The portable radio according to claim 19, wherein a plurality of means for varying the distribution pattern are disposed in the shielding housing and the antenna is disposed outside of said plurality of means for varying the distribution pattern.
Claim 26
Dependent Claim
101 words
A portable radio comprising: an antenna for transmitting and receiving an electromagnetic wave; a shielding housing on which the antenna is mounted, said shielding housing shielding the electromagnetic wave from passing to an interior volume of the shielding housing; a notch formed in the shielding housing which reduces a radio frequency current flowing through the shielding housing attributable to a radiation of the electromagnetic wave; and an internal circuit disposed within the shielding housing and connected to the antenna by way of the shielding housing for generating and receiving the electromagnetic wave, wherein the antenna is disposed outside of the notch.
Claim 27
Dependent Claim
101 words
A portable radio comprising: an antenna for transmitting and receiving an electromagnetic wave; a shielding housing on which the antenna is mounted, said shielding housing shielding the electromagnetic wave from passing to an interior volume of the shielding housing; a notch formed in the shielding housing which reduces a radio frequency current flowing through the shielding housing attributable to a radiation of the electromagnetic wave; and an internal circuit disposed within the shielding housing and connected to the antenna by way of the shielding housing for generating and receiving the electromagnetic wave, wherein the antenna is disposed outside of the notch.
Claim 28
Dependent Claim
17 words
The portable radio according to claim 19 or 23, wherein the antenna is a miniature type antenna.
Claim 29
Dependent Claim
37 words
The portable radio according to claim 23, wherein the antenna is approximately a quarter wavelength long and the notch is disposed at a distance of approximately a quarter wavelength from a top end of the shielding housing.
Claim 30
Dependent Claim
16 words
The portable radio according to claim 23, wherein the notch is approximately a quarter wavelength long.
Claim 31
Dependent Claim
29 words
The portable radio according to claim 23, wherein a plurality of notches are disposed in the shielding housing and the antenna is disposed outside of said plurality of notches.
Claim 32
Dependent Claim
89 words
A portable radio equipment comprising: an antenna for transmitting and receiving an electromagnetic wave; and a housing divided into an upper portion and a lower portion, the upper portion of the housing being connected to the antenna, the lower portion of the housing being connected electrically to the upper portion of the housing via a conductor wire, wherein the upper portion is approximately a quarter wavelength long, and the conductor wire is disposed at a distance of approximately a quarter wavelength from a side edge of the lower portion.
Claim 33
Dependent Claim
89 words
A portable radio equipment comprising: an antenna for transmitting and receiving an electromagnetic wave; and a housing divided into an upper portion and a lower portion, the upper portion of the housing being connected to the antenna, the lower portion of the housing being connected electrically to the upper portion of the housing via a conductor wire, wherein the upper portion is approximately a quarter wavelength long, and the conductor wire is disposed at a distance of approximately a quarter wavelength from a side edge of the lower portion.
Claim 34
Dependent Claim
30 words
The portable radio equipment according to claim 28, wherein the upper portion of the housing and the lower portion of the housing are arranged to form a folding type equipment.
Claim 35
Dependent Claim
20 words
The portable radio equipment according to claim 28, wherein said upper portion and said lower portion are respectively electromagnetically shielded.
Claim 36
Dependent Claim
106 words
A portable radio equipment, comprising: a first shielding housing which shields electromagnetic waves from passing to an interior volume of said first shielding housing, said first shielding housing having a notch which also shields the electromagnetic waves from passing to said interior volume; a second shielding housing disposed within said first shielding housing, said second shielding housing being formed without the notch therein; an internal circuit, disposed within said second shielding housing, for generating and receiving electromagnetic waves; and an antenna connected to the internal circuit, mounted outside of the first shielding housing and disposed outside of said notch for transmitting and receiving the electromagnetic wave.
Claim 37
Dependent Claim
106 words
A portable radio equipment, comprising: a first shielding housing which shields electromagnetic waves from passing to an interior volume of said first shielding housing, said first shielding housing having a notch which also shields the electromagnetic waves from passing to said interior volume; a second shielding housing disposed within said first shielding housing, said second shielding housing being formed without the notch therein; an internal circuit, disposed within said second shielding housing, for generating and receiving electromagnetic waves; and an antenna connected to the internal circuit, mounted outside of the first shielding housing and disposed outside of said notch for transmitting and receiving the electromagnetic wave.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-05-14 | 1999-11-13 | 2000-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-05-14 | 2003-11-13 | 2004-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-05-14 | 2007-11-13 | 2008-05-14 | $7700.00 | Window Closed / Lapsed |