Shared-Pin Transceiver Using DC Bias Switching Without Signal-Path Loss

The patent extracts and removes the switches from the signal path entirely. Instead of using switches to connect/disconnect transmitter and receiver to the pins, the design allows both to be continuously connected to the pins simultaneously. The switching function is achieved through RF switching at the antenna level or through circuit design that enables both paths to coexist without series switches, thereby eliminating the resistive losses and noise degradation caused by switch resistance.

The patent merges the transmit and receive paths by allowing both the transmitter output and receiver input to be continuously connected to the same pins without isolation switches. This is achieved through careful impedance matching and RF switching architecture that combines both signal paths at the antenna interface, eliminating the need for series switches in each path and thereby removing the source of resistive losses.

The patent extracts and removes the switches from the signal path entirely. Instead of using switches to connect/disconnect transmitter and receiver to the pins, the design allows both to be continuously connected to the pins simultaneously. The switching function is achieved through RF switching at the antenna level or through circuit design that enables both paths to coexist without series switches, thereby eliminating the resistive losses and noise degradation caused by switch resistance.

The patent ensures continuous connection of both transmitter and receiver to the pins without interruption or disconnection. By eliminating the switches that would open/close circuits during mode switching, the design maintains continuous signal paths, thereby avoiding the energy losses associated with switch transitions and maintaining optimal signal integrity throughout operation.

The patent makes the pins universal by enabling them to handle both transmitted and received signals through the same physical connection points. By using a single pair of differential pins for both transmit and receive functions with continuous connection to both transmitter output and receiver input, the design achieves multi-functionality that reduces pin count while maintaining signal isolation through RF switching and impedance matching rather than physical separation.

The patent merges the transmit and receive pin functions into a single shared pair of differential pins. By allowing both transmitter and receiver to connect to the same pins simultaneously and using RF-level switching or circuit design to manage signal direction and isolation, the design combines what were previously separate pin functions, thereby reducing the total pin count while maintaining adequate signal isolation through non-contact means.