Method and circuit for controlling reception path of multi-standby terminal
AssigneeSamsung Electronics Co., Ltd.
InventorsYeon Joo Lee, Jae Suk Kim
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Abstract
A method and a circuit for controlling a reception path of a multi-standby terminal are provided. If a first communication module is in a transmission state, all filters disposed in a reception path of a second communication module are activated. If the first communication module is not in a transmission state, fewer than all of the filters disposed in the reception path of the second communication module are activated. A plurality of filters disposed in the reception path of the second communication module are activated partially or fully according to the transmission state of the first communication module.
Claims14
A method for controlling a reception path of a multi-standby terminal having a first communication module and a second communication module, the method comprising:
- determining whether the first communication module is in a transmission state;
- and
- activating at least one of a plurality of filters disposed in a reception path of the second communication module according to the transmission state of the first communication module,
- wherein the activating of at least one of the plurality of filters comprises activating, if the first communication module is in the transmission state, all of the plurality of filters disposed in the reception path of the second communication module, and
- wherein the activating of all of the filters disposed in the reception path of the second communication module comprises switching a first switch to connect an antenna to a first filter, wherein the first filter is coupled to a third switch, and wherein the first communication module comprises a second switch.
A circuit for controlling a reception path of a multi-standby terminal having a first communication module and a second communication module, the circuit comprising:
- a plurality of filters disposed in a reception path in the second communication module;
- and
- a control unit for activating at least one of the plurality of filters disposed in the reception path of the second communication module according to a transmission state of the first communication module,
- wherein at least one of the first communication module and the second communication module comprises:
- a transmission/reception toggle switch for controlling a reception path of the at least one of the first communication module and the second communication module and a transmission path of the at least one of the first communication module and the second communication module;
- a reception path control unit for controlling the reception path of the at least one of the first communication module and the second communication module according to the transmission state of the other one of the at least one of the first communication module and the second communication module;
- a reception module for filtering and low-noise amplifying a signal received from the reception path control unit, and for down-converting a frequency of the signal;
- a modem for demodulating a signal received from the reception module to a voice signal and for modulating a voice signal to a transmission signal;
- and
- a transmission module for up-converting a frequency of a signal received from the modem and amplifying the signal received from the modem.
A method for controlling a multi-standby terminal having a first communication module and a second communication module, the method comprising:
- determining whether the first communication module is in a transmission state;
- determining whether the second communication module is in a transmission state;
- controlling a first switch to connect an antenna to all of a plurality of filters disposed in a reception path of the second communication module if the first communication module is in the transmission state;
- and
- controlling the first switch to connect the antenna to a transmission module of the second communication module if the second communication module is in the transmission state,
- wherein the controlling the first switch to connect the antenna to all of the filters disposed in the reception path of the second communication module comprises switching the first switch to connect the antenna to a first filter, wherein the first filter is coupled to a third switch, and wherein the first communication module comprises a second switch.
Dependencies are inferred from the claim text.