IP Library Granted Patent US 7,738,840
Granted Patent B2
US 7,738,840 · App. 11/703,995 · Granted Jun 15, 2010

Voice, data and RF integrated circuit with on-chip transmit/receive switch and methods for use therewith

Assignee: Broadcom Corporation
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Quick Facts
Patent No.
US 7,738,840
App. No.
11/703,995
Granted
Jun 15, 2010
Kind
B2
Abstract

A voice, data and RF integrated circuit (IC) includes an RF transmitter that generates a transmit signal from outbound data. An RF receiver that generates inbound data from a received signal. A processing module generates a control signal to select either a receive mode or a transmit mode for the RF transmitter and the RF receiver, the control signal having a first value when the receive mode is selected and a second value when the transmit mode is selected. A transmit/receive switch couples the transmit signal to an antenna when the control signal has a second value, and produces the received signal based on an inbound RF signal to the antenna when the control signal has a first value, wherein the transmit/receive switch includes an on-chip microelectromechanical switch.

Claims (35)

1. A voice, data and RF integrated circuit (IC) comprising:

a first RF transmitter that generates a first transmit signal from first outbound data;

a first RF receiver that generates first inbound data from a first received signal;

a second RF transmitter that generates a second transmit signal from second outbound data;

a second RF receiver that generates second inbound data from a second received signal;

a processing module, that generates a first control signal to select either a receive mode or a transmit mode for the first RF transmitter and the first RF receiver, the first control signal having a first value when the receive mode is selected and a second value when the transmit mode is selected and that generates a second control signal to select either a receive mode or a transmit mode for the second RF transmitter and the second RF receiver, the second control signal having a first value when the receive mode is selected and a second value when the transmit mode is selected;

a first transmit/receive switch, coupled to the first RF transmitter, the first RF receiver and the processing module, that couples the first transmit signal to a first antenna when the first control signal has a second value, and that produces the first received signal based on a first inbound RF signal to the first antenna when the first control signal has a first value, wherein the first transmit/receive switch includes a first on-chip microelectromechanical switch; and

a second transmit/receive switch, coupled to the second RF transmitter, the second RF receiver and the processing module, that couples the second transmit signal to a second antenna when the second control signal has a second value, and that produces the second received signal based on a second inbound RF signal to the second antenna when the second control signal has a first value, wherein the second transmit/receive switch includes a second on-chip microelectromechanical switch.

2. The voice, data and RF IC of claim 1 wherein the first outbound data includes voice communications in a voice mode of operation and the first outbound data includes non-realtime data in a data mode of operation.

3. The voice, data and RF IC of claim 1 wherein the first outbound data includes voice communications and the second outbound data includes non-realtime data.

4. A voice, data and RF integrated circuit (IC) comprising:

a first RF transmitter that generates a first transmit signal from first outbound data;

a first RF receiver that generates first inbound data from a first received signal;

a second RF transmitter that generates a second transmit signal from second outbound data;

a second RF receiver that generates second inbound data from a second received signal;

a processing module, that generates a first control signal to select either a receive mode or a transmit mode for the first RF transmitter and the first RF receiver, the first control signal having a first value when the receive mode is selected and a second value when the transmit mode is selected and that generates a second control signal to select either a receive mode or a transmit mode for the second RF transmitter and the second RF receiver, the second control signal having a first value when the receive mode is selected and a second value when the transmit mode is selected;

a first driver, coupled to the processing module that produces a first drive signal having first value in response to a first value of the first control signal, and that produces the first drive signal having a second value in response to a second value of the first control signal; and

a first transmit/receive switch, coupled to the first RF transmitter, the first RF receiver and the processing module, that couples the first transmit signal to a first antenna when the first drive signal has a second value, and that produces the first received signal based on a first inbound RF signal to the first antenna when the first drive signal has a first value, wherein the first transmit/receive switch includes a first on-chip microelectromechanical switch;

a second driver, coupled to the processing module that produces a second drive signal having first value in response to a first value of the second control signal, and that produces the second drive signal having a second value in response to a second value of the second control signal; and

a second transmit/receive switch, coupled to the second RF transmitter, the second RF receiver and the processing module, that couples the second transmit signal to a second antenna when the second drive signal has a second value, and that produces the second received signal based on a second inbound RF signal to the second antenna when the second drive signal has a first value, wherein the second transmit/receive switch includes a second on-chip microelectromechanical switch.

5. The voice, data and RF IC of claim 4 wherein the first outbound data includes voice communications in a voice mode of operation and the first outbound data includes non-realtime data in a data mode of operation.

6. The voice, data and RF IC of claim 4 wherein the first outbound data includes voice communications and the second outbound data includes non-realtime data.

7. A method for use in a voice, data and RF integrated circuit (IC), the method comprising:

generating a first transmit signal from first outbound data;

generating first inbound data from a first received signal;

generating a first control signal to select one of, a receive mode and a transmit mode for a first RF transmitter and a first RF receiver, the first control signal having a first value when the receive mode is selected and a second value when the transmit mode is selected; and

coupling the first transmit signal to a first antenna with a first on-chip microelectromechanical switch when the first control signal has the second value; and

coupling a first inbound RF signal from the first antenna as the first received signal with the first on-chip microelectromechanical switch when the first control signal has the first value;

generating a second transmit signal from second outbound data;

generating second inbound data from a second received signal;

generating a second control signal to select one of a receive mode or a transmit mode for the second RF transmitter and the second RF receiver, the second control signal having a first value when the receive mode is selected and a second value when the transmit mode is selected; and

coupling the second transmit signal to a second antenna with a second on-chip microelectromechanical switch when the second control signal has the second value; and

coupling a second inbound RF signal from the second antenna as the second received signal with the second on-chip microelectromechanical switch when the second control signal has the first value.

8. The method of claim 7 wherein the first outbound data includes voice communications in a voice mode of operation and the first outbound data includes non-realtime data in a data mode of operation.

9. The method of claim 7 wherein the first outbound data includes voice communications and the second outbound data includes non-realtime data.

Assignments (4)
TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENTS Recorded Feb 3, 2017
From: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
To: BROADCOM CORPORATION
Reel/Frame 041712/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 1, 2017
From: BROADCOM CORPORATION
To: AVAGO TECHNOLOGIES GENERAL IP (SINGAPORE) PTE. LTD.
Reel/Frame 041706/0001 →
PATENT SECURITY AGREEMENT Recorded Feb 11, 2016
From: BROADCOM CORPORATION
To: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
Reel/Frame 037806/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 30, 2007
From: ROFOUGARAN, AHMADREZA
To: BROADCOM CORPORATION
Reel/Frame 019228/0454 →
Continuity (1)
Related Publication 20080194212A1 · Aug 14, 2008