Wideband phase modulator

A computer-program product for phase modulation, comprising:

• a non-transitory computer-readable medium encoded with codes executable by at least one processor to:
• generate a plurality of phase shifted signals from a reference signal, each of the phase shifted signals being locked to the reference signal and having a different phase shift from the other phase shifted signals with respect to the reference signal;
• and
• select one of the phase shifted signals, wherein said one the phase shifted signals is selected based on phase information, and further wherein said one of the phase shifted signals is selected using a shift register having a plurality of outputs, each of outputs corresponding to one of the phase shifted signals, the shift register being further configured to shift an enable bit between the outputs to select said one of the phase shifted signals based on the phase information.

A headset, comprising:

• a transducer configured to produce an output;
• a delay locked loop configured to generate a plurality of phase shifted signals from a reference signal, each of the phase shifted signals being locked to the reference signal and having a different phase shift from the other phase shifted signals with respect to the reference signal;
• and
• a multiplexer configured to select one of the phase shifted signals in response to the transducer output, wherein the multiplexer is further configured to select said one of the phase shifted signals based on phase information, and further wherein the multiplexer comprises a shift register comprising a plurality of outputs, each of outputs corresponding to one of the phase shifted signals generated by the delay locked loop, the shift register being further configured to shift an enable bit between the outputs to select said one of the phase shifted signals based on the phase information.

A watch comprising:

• a user interface configured to produce an output;
• a delay locked loop configured to generate a plurality of phase shifted signals from a reference signal, each of the phase shifted signals being locked to the reference signal and having a different phase shift from the other phase shifted signals with respect to the reference signal;
• and
• a multiplexer configured to select one of the phase shifted signals based on the user interface output, wherein the multiplexer is further configured to select said one of the phase shifted signals based on phase information, and further wherein the multiplexer comprises a shift register comprising a plurality of outputs, each of outputs corresponding to one of the phase shifted signals generated by the delay locked loop, the shift register being further configured to shift an enable bit between the outputs to select said one of the phase shifted signals based on the phase information.

A sensing device, comprising:

• a sensor configured to produce an output;
• a delay locked loop configured to generate a plurality of phase shifted signals from a reference signal, each of the phase shifted signals being locked to the reference signal and having a different phase shift from the other phase shifted signals with respect to the reference signal;
• and
• a multiplexer configured to select one of the phase shifted signals based on the sensor output, wherein the multiplexer is further configured to select said one of the phase shifted signals based on phase information, and further wherein the multiplexer comprises a shift register comprising a plurality of outputs, each of outputs corresponding to one of the phase shifted signals generated by the delay locked loop, the shift register being further configured to shift an enable bit between the outputs to select said one of the phase shifted signals based on the phase information.