Low cost/low power analog transceiver architecture
First Claim
Patent Images
1. A time division duplex (TDD) single sideband (SSB) transceiver, comprising:
- a transmitter adapted to input an analog audio signal, sample the analog audio signal, and to output an SSB frequency shift keyed (FSK) signal corresponding to the analog audio signal, the SSB FSK signal including analog information;
a receiver adapted to switch between receiving one of an upper sideband and a lower sideband of an external SSB signal and, link management device adapted to detect interference when said receiver is receiving one of the upper sideband and the lower sideband of the external SSB signal to provide a control signal to the receiver in response thereto, and to detect the interference when said transmitter is transmitting one of the upper sideband and the lower sideband of the analog audio signal to provide the control signal to the receiver in response thereto.
2 Assignments
0 Petitions
Accused Products
Abstract
A time division duplex (TDD) single sideband (SSB) transceiver includes a transmitter adapted to input an analog audio signal, sample the analog audio signal, and to output an SSB frequency shift keyed (FSK) signal corresponding to the analog audio signal, the SSB FSK signal including analog information. A receiver is adapted to switch between receiving one of an upper sideband and a lower sideband of an external SSB signal.
-
Citations
8 Claims
-
1. A time division duplex (TDD) single sideband (SSB) transceiver, comprising:
-
a transmitter adapted to input an analog audio signal, sample the analog audio signal, and to output an SSB frequency shift keyed (FSK) signal corresponding to the analog audio signal, the SSB FSK signal including analog information; a receiver adapted to switch between receiving one of an upper sideband and a lower sideband of an external SSB signal and, link management device adapted to detect interference when said receiver is receiving one of the upper sideband and the lower sideband of the external SSB signal to provide a control signal to the receiver in response thereto, and to detect the interference when said transmitter is transmitting one of the upper sideband and the lower sideband of the analog audio signal to provide the control signal to the receiver in response thereto. - View Dependent Claims (2, 3, 4)
-
-
5. A time division duplex (TDD) single sideband (SSB) transceiver, comprising:
-
a quadrature modulator adapted to modulate analog audio signals for transmission; a first sideband switch adapted to switch between transmitting an upper sideband signal and a lower sideband signal of an analog audio signal; a second sideband switch adapted to switch between receiving one of an upper sideband signal and a lower sideband signal of an external SSB signal and, a link management device adapted to detect interference when said TDD SSB transceiver is receiving one of the upper sideband and the lower sideband of the external SSB signal to provide a control signal to the second sideband switch in response thereto, and to detect interference when said TDD SSB transceiver is transmitting one of the upper sideband and the lower sideband of the analog audio signal to provide the control signal to the first sideband switch in response thereto. - View Dependent Claims (6, 7, 8)
-
Specification