Hands-free device with button for cellular telephone...

Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail

Reexamination Certificate

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Details

C455S090200

Reexamination Certificate

active

06970727

ABSTRACT:
The send, end, and push-to-talk functions of a combination cellular telephone/two-way radio, are controlled with a single button on a hands-free device having a cable attached to the button, a microphone, and an earpiece. The button is pressed to instruct the cellular telephone/two-way radio to transmit in a half-duplex communications mode for a two-way radio conversation. The user speaks while continuing to press the button, to transmit the user's words in the two-way radio conversation. Next, the user releases the button, to instruct the cellular telephone/two-way radio to cease transmitting, to permit the user to hear words transmitted by the other party to the two-way radio conversation. Additionally, the user may answer an incoming cellular telephone call by pressing the button used during the two-way radio conversation, to instruct the cellular telephone/two-way radio to establish communications for a full duplex cellular telephone conversation.

REFERENCES:
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patent: 5794163 (1998-08-01), Paterson et al.
patent: 5802167 (1998-09-01), Hong
patent: 5881370 (1999-03-01), Pottala et al.
patent: 6154539 (2000-11-01), Pitel
patent: 6212365 (2001-04-01), Goeb
patent: 6522894 (2003-02-01), Schmidt
patent: 2003/0003969 (2003-01-01), Tong et al.
patent: 2004/0077382 (2004-04-01), Verity
patent: 09-172697 (1997-06-01), None
“NEXTEL Hands-Free Accessories” brochure, Feb. 2002, 2 pages, Klein Electronics, Escondido, U.S.A.
“Klein Wireless” brochure, Jan. 2000, 2 pages, Klein Electronics, Escondido, U.S.A.
“K1000PTT Product Overview”, Jul. 2001, 1 page, Klein Electronics, Escondido, U.S.A.
“Samsung SCH-850 Accessory Guide”, 1999, 2 pages, Samsung Telecommunications America, Inc., Richardson, U.S.A.
“Klein Electronics: Earphone With In-Line Mic. and PTT (Push-to-talk) Button”, HeadsetUSA webpage, May 16, 2002, 1 page, http://www.headsetusa.com/ . . . .
“Klein Electronics: iDen/NEXTEL Earpiece Kits”, HeadsetUSA webpages, May 16, 2002, pp. 1-3, http://www.headsetusa.com/ . . . .
Klein, Richard, declaration, Jul. 16, 2003, 2 pages plus exhibits.

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