Invention Grant
- Patent Title: Independent gain control for multiple receive circuits concurrently processing different transmitted signals
- Patent Title (中): 多个接收电路的独立增益控制同时处理不同的发送信号
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Application No.: US13720864Application Date: 2012-12-19
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Publication No.: US09548709B2Publication Date: 2017-01-17
- Inventor: Vladimir Aparin
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agent Rupit M. Patel
- Main IPC: H04B7/08
- IPC: H04B7/08 ; H03F3/189 ; H03G3/00 ; H03G3/30

Abstract:
Techniques for simultaneously receiving multiple transmitted signals with independent gain control are disclosed. In an exemplary design, an apparatus (e.g., a wireless device, an integrated circuit, etc.) includes a low noise amplifier (LNA) and first and second receive circuits. The LNA amplifies a receiver input signal and provides (i) a first amplified signal for a first set of at least one transmitted signal being received and (ii) a second amplified signal for a second set of at least one transmitted signal being received. The first receive circuit scales the first amplified signal based on a first adjustable gain selected for the first set of transmitted signal(s). The second receive circuit scales the second amplified signal based on a second adjustable gain selected for the second set of transmitted signal(s). The first and second adjustable gains may be independently selected, e.g., based on the received powers of the transmitted signals.
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