PATENT CLAIM ANALYSIS

Application Number: 15948147
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2019-10
Patent Classification: ["345", "173000"]

Abstract:
Disclosed is a method for testing touch screen displays during manufacture. A touch screen controller (TSC) is packaged, and the analog channels of the TSC are characterized, with resulting data being stored for later use. The TSC is programmed, and the touch screen display and TSC are packaged together. The touch screen display is tested using firmware in the TSC, enabling calculation of the inherent capacitances between force and sense lines of the touch screen display when connected to the TSC during operation. The testing involves, for each force and sense line pair, measuring an output signal generated by a receive channel of the TSC coupled to the sense line of that pair. Based upon the data gathered during characterization, and the signals measured during testing, the capacity of the touch screen display is then calculated.

Claim (Index 20):
A method, comprising:\n providing a touch screen controller having transmit and receive channels; determining at least one subcomponent characteristic and at least one operational parameter of at least one transmit channel from among the transmit channels of the touch screen controller; coupling a touch screen display having force lines and sense lines to the transmit and receive channels of the touch screen controller; applying a force signal from the at least one transmit channel to a corresponding force line of the touch screen display, using the touch screen controller; receiving a touch signal from a sense line of the touch screen display corresponding to the force line, at the touch screen controller, wherein the touch signal represents a capacitance between the force line and the sense line; processing the touch signal so as to generate a touch data signal, using the touch screen controller, by:\n compensating the capacitance by coupling a compensation circuit to the force line; \n converting the capacitance to a charge, using a capacitance to voltage converter; \n accumulating the charge to produce an accumulated signal, using an accumulator circuit; and \n amplifying the accumulated signal to produce the touch data signal, using a gain stage; and \n determining an inherent capacitance between the force line and the sense line as a function of the touch data signal, a common mode voltage present between the force line and the sense line, the at least one subcomponent characteristic, and the at least one operational parameter, using the touch screen controller.

Metadata:
- Claim Count in Document: 34.0
- Percentile: 91.0
- Lexical Diversity: 2.0
- Patent Class: 345.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15235974', '13717780', '13013308', '13717766', '13619328']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6442683252356513
- 35 USC 102 Novelty (BERT): 0.4868656368502015
- Combined Prediction Score: 0.6285280563971063
- Mean Citation Score: 202.759732
- Max Citation Score: 223.22736
- Similarity Product: 167.94533770442962

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

Dataset: test