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Multi-channel transducer device and method of operation thereof

A transducer, multi-channel technology used in analog-to-digital converters, instrumentation, image communications, etc., to solve problems such as failure to compensate for the inherent limitations of sensors

Active Publication Date: 2018-07-24
STMICROELECTRONICS SRL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Furthermore, control circuits for gain are often placed far from the sensor in the chain of signal processing and fail to compensate for the inherent limitations of the sensor

Method used

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  • Multi-channel transducer device and method of operation thereof
  • Multi-channel transducer device and method of operation thereof
  • Multi-channel transducer device and method of operation thereof

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Embodiment Construction

[0019] In the following description, certain specific details are set forth in order to provide a thorough understanding of various embodiments of the present disclosure. However, it will be understood by those skilled in the art that the present disclosure may be practiced without these specific details. In other instances, well-known structures associated with electronic components and signal processing have not been described in detail to avoid unnecessarily obscuring the description of the embodiments of the present disclosure.

[0020] Unless the context requires otherwise, throughout the specification and claims that follow, the word "comprise" and its variations are synonymous with "comprising" and are inclusive or open-ended (e.g., do not exclude additional, unrecited component or method action).

[0021] Throughout this specification, reference to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection...

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Abstract

The present disclosure relates to multi-channel transducer devices and methods of operation thereof. An example device includes at least two acquisition modules having different sensitivities and a signal processing stage that generates a mixed signal representing a lower gain signal mapped onto a higher gain signal. One example method of operation includes receiving a first signal from a first sensor having a first sensitivity, receiving a second signal from a second sensor having a second sensitivity different from the first sensitivity, by mapping the second signal to the first sensor A signal generates a mixed signal, outputting a first signal when the first signal is below a first threshold and above a second threshold, and outputting when the first signal is above the first threshold and when the first signal is below the second threshold mixed signals.

Description

technical field [0001] The present disclosure relates to a multi-channel transducer device, and more particularly to a multi-channel transducer device that maps a low-gain signal onto a high-gain signal when a high-gain signal is saturated to form a mixed signal and transitions smoothly into the mixed signal and its method of operation. Background technique [0002] Devices are becoming more sensitive and precise with respect to detecting or sensing their surroundings. In order to detect signals with a high dynamic range, these devices include multiple acquisition channels with different sensitivities (eg multiple sensors with different sensitivities). The range of a single acquisition channel is too limited to detect the full range of detectable signals. [0003] Devices that include more than one acquisition channel, such as a low-sensitivity acquisition channel and a high-sensitivity acquisition channel, are becoming more common in everyday electronics. For example, ce...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03M1/12
CPCG01D3/036G01P15/08H04R3/005H04N23/741H04N25/57
Inventor A·L·维塔利
Owner STMICROELECTRONICS SRL