US Patent No. 10,128,884

ANTENNA INTERFACE CIRCUIT, DATA CARD, AND ANTENNA CONNECTION CONTROL METHOD AND APPARATUS


Patent No. 10,128,884
Issue Date November 13, 2018
Title Antenna Interface Circuit, Data Card, And Antenna Connection Control Method And Apparatus
Inventorship
Assignee HUAWEI DEVICE (SHENZHEN) CO., LTD., Shenzhen (CN)

Claim of US Patent No. 10,128,884

1. A circuit, comprising:a main connector having a common contact, a normally-closed contact, and a normally-open contact; and
a single-pole double-throw switch having a common contact, a normally-closed contact, and a normally-open contact, wherein:
the common contact of the main connector is used as a terminal of a main receiver;
the normally-closed contact of the main connector is used as a port of a main antenna;
the normally-open contact of the main connector is used as a port of an external antenna;
the common contact of the single-pole double-throw switch is used as a port of a diversity receiver;
the normally-closed contact of the single-pole double-throw switch is used as a port of a diversity antenna; and
the normally-open contact of the single-pole double-throw switch is connected to the normally-closed contact of the main connector.