Patent US5321738A successfully refreshed from Google Patents.
US5321738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Switch apparatus of a portable cordless telephone using an antenna
Assignee: Samsung Electronics Co Ltd
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Filing: 1991-12-11
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Granted: 1994-06-14
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Expires: 2011-12-11
Abstract
Abstract A switch apparatus of a portable cordless telephone for easily performing call incoming and originating functions by using an antenna. A push bar is formed at an edge of an antenna positioned inside a handset, and a push switch formed in the telephone receiver side of the handset has a contact part and a coupling part. The contact part has one protrusion end and another end coupled to the coupling part installed on a printed circuit board. Thus, when drawing the antenna to the exterior of the handset, the call incoming and the call originating functions are capable of being performed without an additional switch operation.
Inventors
- 👤 Sang-Wook Ha
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:14
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/38; H04B1/40; H04B1/403; H04B1/405; H03; H03D; H03D7/00; H03D7/16; H03D7/161
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
175 words
A switch apparatus used in a portable cordless telephone with an antenna extending from an interior to an exterior of a handset of said portable cordless telephone, said antenna being slidable between said interior and said exterior of said handset, said switch apparatus comprising: push bar means formed at an end of said antenna positioned inside said handset; and switch means to operate in association with said push bar means, said switch means having a contact part positioned on a first end and a coupling part positioned on a second end, said contact part having a protrusion extending towards said push bar means; whereby when said antenna is withdrawn from the one interior side of said handset, said protrusion engages said push bar means to thereby activate said switch means to enable a power-on state of said portable cordless telephone, and when said antenna is retracted into the interior of said handset, said protrusion engages said push bar means to thereby deactivate said switch means to enable a power-off state of said portable cordless telephone.
Claim 2
Dependent Claim
175 words
A switch apparatus used in a portable cordless telephone with an antenna extending from an interior to an exterior of a handset of said portable cordless telephone, said antenna being slidable between said interior and said exterior of said handset, said switch apparatus comprising: push bar means formed at an end of said antenna positioned inside said handset; and switch means to operate in association with said push bar means, said switch means having a contact part positioned on a first end and a coupling part positioned on a second end, said contact part having a protrusion extending towards said push bar means; whereby when said antenna is withdrawn from the one interior side of said handset, said protrusion engages said push bar means to thereby activate said switch means to enable a power-on state of said portable cordless telephone, and when said antenna is retracted into the interior of said handset, said protrusion engages said push bar means to thereby deactivate said switch means to enable a power-off state of said portable cordless telephone.
Claim 3
Dependent Claim
16 words
The switch apparatus as claimed in claim 1, wherein said contact part comprises an elastic body.
Claim 4
Dependent Claim
160 words
A switch apparatus used in a handset of a portable communication device having an antenna extending from an interior region to an exterior region of the handset and a printed circuit board, said antenna being slidable between an extended position and a retracted position, said switch apparatus comprising: knob means formed on an interior end of said antenna for moving along a path within said handset in response to said antenna being extended and retracted; and switch means for alternating said handset between a first and second state of performance in response to motion by said knob means; said first state of performance being a power-on state so that said handset receives and transmits calls and occurs when said antenna is extended to said exterior region of said handset; and said second state of performance being a stand-by state for periods of inactivity of said handset and occurs when said antenna is retracted into said interior region of said handset.
Claim 5
Dependent Claim
160 words
A switch apparatus used in a handset of a portable communication device having an antenna extending from an interior region to an exterior region of the handset and a printed circuit board, said antenna being slidable between an extended position and a retracted position, said switch apparatus comprising: knob means formed on an interior end of said antenna for moving along a path within said handset in response to said antenna being extended and retracted; and switch means for alternating said handset between a first and second state of performance in response to motion by said knob means; said first state of performance being a power-on state so that said handset receives and transmits calls and occurs when said antenna is extended to said exterior region of said handset; and said second state of performance being a stand-by state for periods of inactivity of said handset and occurs when said antenna is retracted into said interior region of said handset.
Claim 6
Dependent Claim
76 words
The switch apparatus as claimed in claim 3, wherein said switch means comprises: contact means located at a first end of said switch means and having a protrusion for contacting said knob means when said antenna is extended; and coupling means located at a second end of said switch and installed on said printed circuit board, for alternating said handset between said first and second state of performance in response to motion by said contact means.
Claim 7
Dependent Claim
15 words
The switch apparatus as claimed in claim 4, wherein said contact means comprises elastic material.
Claim 8
Dependent Claim
55 words
The switch apparatus as claimed in claim 3, wherein said switch means comprises: contact means for contacting said knob means when said antenna is extended; and coupling means installed on said printed circuit board, for alternating said handset between a first and a second state of performance in response to motion by said contact means.
Claim 9
Dependent Claim
45 words
The switch apparatus as claimed in claim 6, wherein said contact means is located at a first end of said switch means and has a protrusion to contact said knob means and said coupling means is located at a second end of said switch means.
References Cited (Backward Citations)
US5109539A
Cited
US5138329A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-06-13 | 1997-12-13 | 1998-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-06-13 | 2001-12-13 | 2002-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-06-13 | 2005-12-13 | 2006-06-14 | $7700.00 | Window Closed / Lapsed |