EP0348187A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Protective casing for a hand-held portable radio telephone
Assignee: NEC Corp
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Filing: 1989-06-22
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Granted: —
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Expires: 2009-06-22
Abstract
Abstract A protective casing (64) for a hand-held portable radio telephone (66) has at least one antenna (68) built therein which is usable in place of an antenna (78) which is built in on the telephone. When two antennas (68,70) are provided in the protective casing, the one of them which has the more intense electric field than the other is automatically selected (72) during the course of conversation.
Inventors
- 👤 Yoshiharu C/O Nec Corporation Tamura
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-31 06:16
CPC Classifications
H; H04; H04B; H04B7/00; H04B7/24; H04B7/26; H04B7/02; H04B7/04; H04B7/08; H04B7/0802; H04B7/0805; H04B7/0808; H04B1/00; H04B1/38; H04B1/3827; H04B1/3888; H04B7/0825
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
29 words
A protection casing for receiving a hand-held portable radio telephone, comprising: a casing body; and at least one antenna build in said casing body and connected to the telephone.
Claim 2
Dependent Claim
29 words
A protection casing for receiving a hand-held portable radio telephone, comprising: a casing body; and at least one antenna build in said casing body and connected to the telephone.
Claim 3
Dependent Claim
25 words
A protective casing as claimed in claim 1, wherein said casing body comprises a pair of flaps which are interconnected in a book jacket configuration.
Claim 4
Dependent Claim
32 words
A protective casing as claimed in claim 2, wherein each of said flaps comprises a flat dielectric member and a base plate laminated on one of major surfaces of said dielelctric member.
Claim 5
Dependent Claim
26 words
A protection casing as claimed in claim 2, wherein said antenna comprises a flat conductive member laminated on the other major surface of said dielectric member.
Claim 6
Dependent Claim
24 words
A protective casing as claimed in claim 1, wherein said casing body has a box-line configuration which encloses a major part of said telephone.
Claim 7
Dependent Claim
17 words
A protective casing as claimed in claim 1, wherein said casing body has two antennas built therein.
Claim 8
Dependent Claim
32 words
A protective casing as claimed in claim 6, wherein either one of said two antennas having a more intense electric field than the other is automatically selected and connected to the telephone.
Claim 9
Dependent Claim
21 words
A protective casing as claimed in claim 1, wherein the telephone comprises an external antenna terminal for mounting an external antenna.
Claim 10
Dependent Claim
32 words
A protective casing as claimed in claim 8, wherein said casing body comprises a connector which is engageable with the external antenna terminal and is connected to said at least one antenna.
References Cited (Backward Citations)
No citation records indexed.
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