Modular Modification of cellular phone handfree kit and the applications thereof

• US 20040204163A1
• Filed: 09/19/2002
• Published: 10/14/2004
• Est. Priority Date: 09/19/2002
• Status: Abandoned Application

• Current Assignee: Jack Ou
• Original Assignee: Jack Ou
• Inventors: Ou, Jack
• Application Number:
  US10/246,471
• Publication Number:
  US 20040204163A1
• Time in Patent Office: Days
• US Class Current: 455/569.1
• CPC Class Codes: B60R 11/0241 for telephones
• CPC Class Codes: B60R 2011/0054 using cigarette lighter
• CPC Class Codes: H04M 1/6091 including a wireless interface

Abstract

The present invention discloses a modular modification of cellular phone handfree kit and the applications thereof, wherein said cellular phone handfree kit comprising a front cap, a back cap, a clasp and an upholder portion; said cellular phone handfree kit is suitable for use with different folding-type cellular phones by exchanging said clasp and said upholder portion; said cellular phone handfree kit further comprising a circuit board which comprises a FM audio signal module and a charging controller, said FM audio signal module further comprising a signal amplifying circuit, a FM modulation module, a filter and a transmitting antenna; upon receiving an audio signal from a cellular phone, said cellular phone handfree kit processing and converting said audio signal to a FM audio signal, transmitting said FM audio signal to a radio or a FM receiver using said transmitting antenna, and broadcasting said FM audio signal using a speaker of said radio or said FM receiver.

Claims

1. A cellular phone handfree kit suitable for use with different folding-type cellular phones by means of exchanging modules, comprising:

an upholder portion for supporting a cellular phone;

a clasp, along with the upholder portion, for fastening said cellular phone;

a front cap comprising a first through hole on top to place said clasp and a base with a second through hole for placing said upholder portion;

a back cap comprising a volume controller and a plug for receiving an audio signal from said cellular phone; and

a circuit board placing between said front cap and said back cap.

2. The cellular phone handfree kit as recited in claim 1, wherein said circuit board comprises a FM audio transmission module for converting said audio signal into a FM audio signal for transmission, comprising:

a signal amplifying circuit for receiving said audio signal from said cellular phone and generating an amplified signal;

a FM modulation module for modulating said amplified signal from said signal amplifying circuit into said FM audio signal and a noise;

a filter for removing said noise generated by said FM modulation module; and

a transmitting antenna for transmitting said FM audio signal from said filter.

3. The cellular phone handfree kit as recited in claim 1 further comprises a charging controller, said charging controller comprising a LED using a color for indicating a charging status of said cellular phone handfree kit.