Signal generation devices including an auto-tuning electronic circuit module for generating tuned output signals are disclosed. The auto-tuning electronic circuit module may include a tunable resonant electronic circuit element for providing a tuned output signal, including a voltage divider element and a tuning array element and control element.

Signal generation devices including an auto-tuning electronic circuit module for generating tuned output signals are disclosed. The auto-tuning electronic circuit module may include a tunable resonant electronic circuit element for providing a tuned output signal, including a voltage divider element and a tuning array element and control element.

Signal generation devices including an auto-tuning electronic circuit module for generating tuned output signals are disclosed. The auto-tuning electronic circuit module may include a tunable resonant electronic circuit element for providing a tuned output signal, including a voltage divider element and a tuning array element and control element.

A clock frequency supply device includes: a frequency tuner configured to receive an input signal with a carrier frequency, and tune an oscillation frequency of an oscillator based on the carrier frequency; an injector configured to inject the input signal directly into the oscillator after the tuning of the oscillation frequency is completed; and an oscillator configured to generate a reference clock signal with a reference clock frequency based on the injected input signal.

A wireless operation system includes a wireless operation terminal and an operated device operated by the wireless operation terminal. The wireless operation terminal and the operated device perform short-range communication. The wireless operation terminal and the operated device are connected to a wide area communication network and perform wide area wireless communication. The wireless operation terminal and the operated device perform transmission and reception of a signal for connection setting for the short-range communication.

A clock frequency supply device includes: a frequency tuner configured to receive an input signal with a carrier frequency, and tune an oscillation frequency of an oscillator based on the carrier frequency; an injector configured to inject the input signal directly into the oscillator after the tuning of the oscillation frequency is completed; and an oscillator configured to generate a reference clock signal with a reference clock frequency based on the injected input signal.

An augmented reality system including a source and a contact lens display can be used to project information from the contact lens display onto the retina of the wearer's eye. The source provides energy to the contact lens display and operates at a source frequency. The source includes a source circuit including a conductive coil. The contact lens display includes a resonant circuit including another conductive coil and a capacitive circuit. The resonant circuit receives energy from the conductive coil of the source via a magnetic field inductively coupling the conductive coils. The contact lens display additionally includes a feedback circuit to adjust the capacitance of the capacitive circuit to control a resonant frequency of the resonant circuit. The feedback circuit can control the capacitive circuit to maintain the resonant frequency of the resonant circuit near the source frequency as the wearer's eye blinks.

An apparatus is disclosed including a wireless transceiver implementing transformer reconfigurability. In an example aspect, the apparatus includes a common single-ended node, a common differential node pair, and a transceiver path set. The transceiver path set includes a first transceiver path and a second transceiver path. The first transceiver path comprises a first single-ended interface and a first differential interface and includes a first transformer. The second transceiver path comprises a second single-ended interface and a second differential interface and includes a second transformer. The apparatus also includes single-ended switch circuitry and differential switch circuitry. The single-ended switch circuitry is coupled between each transceiver path of the transceiver path set and the common single-ended node. The differential switch circuitry is coupled between each transceiver path of the transceiver path set and the common differential node pair. Alternatively, an apparatus can include multiple single-ended nodes including first and second single-ended nodes.

An apparatus is disclosed including a wireless transceiver implementing transformer reconfigurability. In an example aspect, the apparatus includes a common single-ended node, a common differential node pair, and a transceiver path set. The transceiver path set includes a first transceiver path and a second transceiver path. The first transceiver path comprises a first single-ended interface and a first differential interface and includes a first transformer. The second transceiver path comprises a second single-ended interface and a second differential interface and includes a second transformer. The apparatus also includes single-ended switch circuitry and differential switch circuitry. The single-ended switch circuitry is coupled between each transceiver path of the transceiver path set and the common single-ended node. The differential switch circuitry is coupled between each transceiver path of the transceiver path set and the common differential node pair. Alternatively, an apparatus can include multiple single-ended nodes including first and second single-ended nodes.

An augmented reality system including a source and a contact lens display can be used to project information from the contact lens display onto the retina of the wearer's eye. The source provides energy to the contact lens display and operates at a source frequency. The source includes a source circuit including a conductive coil. The contact lens display includes a resonant circuit including another conductive coil and a capacitive circuit. The resonant circuit receives energy from the conductive coil of the source via a magnetic field inductively coupling the conductive coils. The contact lens display additionally includes a feedback circuit to adjust the capacitance of the capacitive circuit to control a resonant frequency of the resonant circuit. The feedback circuit can control the capacitive circuit to maintain the resonant frequency of the resonant circuit near the source frequency as the wearer's eye blinks.