Biological signal processor

A biosignal and processing equipment technology, applied in hospital equipment, medical science, hospital beds, etc., can solve problems such as aging damage and inability to obtain output

Inactive Publication Date: 2013-10-30
TANITA CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In mat-type sensors using air, water or similar medi...

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example 2

[0083] In the above-described embodiments, although an example in which the respective amplification ratios of the amplifier are 1 time, 3.4 times, 10.2 times, and 31 times was described, the present invention is not limited to this example. These magnifications can be varied as desired. In the above-described embodiments, although an example using four amplifiers was described, the number of amplifiers may be changed as necessary. In the above-mentioned embodiments, although an example in which the specific time period for data acquisition and processing is 30 seconds has been described, the specific time period may also be changed as required. The value of the specified value used in the sensor sensitivity confirmation process can also be changed as needed.

Deformed example 3

[0085] The application of the biological signal processing device according to the embodiment is not limited to the sleep state measuring device. For example, for a bed in a hospital or a nursing home, the biosignal processing device can be used alone and used to judge whether a patient or a care receiver is in bed (going into and out of bed). The biological signal processing apparatus according to the embodiment may be applied to other devices such as wake-up devices.

[0086] (4) Modification 4

[0087] In the above-described embodiment, although the first AD conversion unit 80 to the fourth AD conversion unit 83 are arranged in the AD conversion unit 8 , each AD conversion unit may be arranged at any position. For example, the AD conversion unit may be arranged in the signal processing unit 7 or may be arranged in the CPU 9 . In the above-described embodiments, although the measurement signal is amplified before AD conversion, amplification may be performed after the me...

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Abstract

A biological signal processor includes a sensor unit 2 that is usable with a mattress, measures biological displacement of a subject on the mattress, and outputs a measurement signal indicative of a measurement result, a signal processing unit 7 that amplifies the measurement signal with a plurality of different gains and outputs respective output signals, an AD converting unit 8 that performs AD conversion on the respective output signals to obtain level values and outputs the respective level values, and a determining unit 90 that determines that the sensor unit 2 is in an abnormal condition in case where a variation measure indicative of variation degree in level value corresponding to an output signal amplified with a minimum gain among the respective level values is equal to or less than a predetermined value.

Description

technical field [0001] The present invention relates to a biological signal processing apparatus for processing signals based on biological displacements of a subject such as respiration, pulse, and body motion. Background technique [0002] In recent years, biosignal processing apparatuses that process signals based on biological shifts of a subject such as respiration, heartbeat, pulse, and body motion have been proposed. The biological signal processing device is applied, for example, to a sleep state measurement device for measuring the sleep state of a subject. In this sleep state measurement device, although starting measurement of sleep state requires a start command for the device, there arises a problem that the subject easily forgets the command operation (such as switch operation, etc.) since sleep is a daily activity. In the case of using the biosignal processing device, it can be determined that the subject is in bed without any special operation of the sleep s...

Claims

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Application Information

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IPC IPC(8): A61B5/00
CPCA61B2562/0247A61B5/6892A61B5/1113A61B2562/0204A61B5/4809A61B2560/0276A61B5/7225G08B21/185A61B5/0205A61G7/00
Inventor 酒井良雄
Owner TANITA CORP
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