Analogue time division multiplexing for cable reduction in imaging catheters
US10869652B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 14, 2016 |
| Grant date | Dec 22, 2020 |
| Priority date | — |
| Expiry date | Aug 10, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/52079
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The disclosed technology relates to imaging catheters. A method is provided that includes: receiving, from a plurality of transducers disposed on a catheter probe, a corresponding plurality of analog signals; selectively sampling the plurality of analog signals; multiplexing to produce a sequence of samples; and transmitting the sequence of samples to a receiver circuit. The receiver circuit includes a clock; an analog to digital converter (ADC) in communication with the clock; and a sampling phase correction circuit in communication with the clock and the ADC. The method further includes: determining optimum sampling times based on measured signal delays associated with the system; adjusting a phase of the clock based on the measured signal delays; and communicating the phase-adjusted clock to the transmitter circuit for the selective sampling of the analog signals. Certain embodiments of the disclosed technology may further be utilized in conjunction with beamforming.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.