H - Electricity – 04 – B
Patent
H - Electricity
04
B
351/2, 325/73, 3
H04B 1/16 (2006.01) H04B 1/18 (2006.01)
Patent
CA 1165820
SO1446 RADIO RECEIVING APPARATUS USING HEADPHONE CONNECTOR CABLE AS AN ANTENNA ABSTRACT OF THE DISCLOSURE Radio receiving apparatus having a receiving unit including an RF stage and a signal processing stage, the latter producing an audio frequency signal in response to the RF signal supplied to the RF stage. The receiving unit also includes a jack having at least first and second contacts, the first contact being supplied with the audio frequency signal and the second contact being coupled to a reference potential impedance means which presents a relatively high impedance to a RF signal. Headphones are connectable to the receiving unit by conducting leads which terminate in a plug that is insertable into the jack. The plug has at least two conductive portions which, when the plug is inserted into the jack, connect to the first and second jack contacts, respectively. The conducting leads which connect the headphones to the plug include at least one signal carrying lead which is connected to the conductive portion of the plug which is connected to the first jack contact and which receives the audio signal. The conducting leads further include at least one shield lead disposed in shielding relationship with respect to the signal carrying lead, the shield lead being connected to the other conductive portion of the plug and being adapted to pick up radio signals and supply same to the second jack -i- contact. A coupling element, such as a capacitor, couples the second jack contact to the RF stage of the receiving unit, thereby coupling the picked up radio signals thereto. -ii-
379914
Gowling Lafleur Henderson Llp
Sony Corporation
LandOfFree
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