PATENT CLAIM ANALYSIS

Application Number: 16077147
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2019-01
Patent Classification: ["340", "435000"]

Abstract:
The invention relates to an ultrasonic measuring system ( 10 ), in particular for measuring distance and/or as a parking aid in vehicles, having an electroacoustic ultrasonic transducer ( 12 ) which has a oscillating element ( 14 ), does not have a voltage converter, can be alternately operated as an ultrasonic transmitter and an ultrasonic receiver and has a signal connection ( 16 ), which is used either as an input or as an output of the ultrasonic transducer ( 12 ), and an earth connection ( 18 ) which is connected to earth, and a control and evaluation unit ( 20 ) for exciting the oscillating element ( 14 ) of the ultrasonic transducer ( 12 ) to emit ultrasonic waves for operating the ultrasonic transducer ( 12 ) during a transmission interval for the purpose of subsequently deactivating the excitation of the oscillating element ( 14 ) and attenuating the latter during a decay phase and for receiving and processing ultrasonic waves in a reception interval. The control and evaluation unit ( 20 ) has a bridge circuit ( 28 ) which is connected to a DC supply voltage ( 80 ) and has controllable switches ( 30  to  40 ) and a charge storage capacitance ( 42 ), the polarity of which can be reversed and which is intended to alternately output a positive and a negative excitation voltage for the signal connection ( 16 ) of the ultrasonic transducer ( 12 ) during the transmission interval. The control and evaluation unit ( 20 ) outputs a voltage pulse of substantially 0 V at the end of the transmission interval for the signal connection ( 16 ) of the ultrasonic transducer ( 12 ).

Claim (Index 1):
An ultrasonic measuring system, in particular for distance measurement and/or as a parking assistant in vehicles, comprising\n an electro-acoustic ultrasonic transducer without a voltage converter and comprising a oscillating element, which transducer is configured to be operated alternately as an ultrasonic transmitter and as an ultrasonic receiver, and a signal terminal which serves either as an input or as an output of the ultrasonic transducer, and a ground terminal connected to ground or connected to ground with low resistivity, and \n a control and evaluation unit for exciting the oscillating element of the ultrasonic transducer for transmitting ultrasonic waves for the operation of the ultrasonic transducer during a transmission interval for the subsequent deactivation of the excitation of the oscillating element as well as for damping the same during a decay phase and for receiving, as well as for processing ultrasonic waves in a receiving interval, \n wherein the control and evaluation unit comprises a bridge circuit connected to a supply DC voltage, said circuit comprising controllable switches and a reversible charge storage capacitance for alternately outputting a positive and a negative excitation voltage for the signal terminal of the ultrasonic transducer during the transmission interval at an output terminal of a driver stage of the control and evaluation unit, and \n wherein, by connecting the output terminal to ground, the control and evaluation unit outputs a voltage pulse at the end of the transmission interval for the signal terminal of the ultrasonic transducer, the magnitude of the pulse being equal to the mean excitation voltage for a signal terminal of the ultrasonic transducer, which excitation voltage, due to the positive and negative excitation voltages for the signal terminal of the ultrasonic transducer being outputted during a transmission interval, is present at the same.

Metadata:
- Claim Count in Document: 20.0
- Percentile: 96.0
- Lexical Diversity: 2.82075
- Patent Class: 340.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14117128', '14750312', '10831308', '15626964', '15688898']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.676466273439346
- 35 USC 102 Novelty (BERT): 0.49178271953795
- Combined Prediction Score: 0.6579979180492064
- Mean Citation Score: 199.305916
- Max Citation Score: 205.9573
- Similarity Product: 151.27839708667997

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 0
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test