A handwriting input method based on the thermal cue of the fingertip

Improved FRZPC for the two‐dimensional resistive sensor array

“…As bypass currents of parallel paths, all non-scanned elements (R non-scanned s) affected the performance of the readout circuits including the voltage feedback circuits (VFCs) [2,24] and the ZPCs in the resistive sensor array [10,18,19,21,24]. We investigated the R non-scanned 's effect on the FRZPC and the IFRZPC.…”

“…For monitoring structural health condition and the activities of humans and robots, the two-dimensional (2D) resistive sensor arrays were used in structural health monitoring tool [1], thermal sensor [2,3], tactile sensor [4][5][6][7][8][9][10][11][12], electronic skin devices [11][12][13][14][15], resistive memory [16], and smart clothes [17]. Fast readout (FR) circuits, with high accuracy and simple connection, were used to perform fast and precise perceiving the physical parameter distribution of the sensing domain.…”

Improved resistance matrix approach for readout of the two-dimensional resistive sensor array

“…Readout circuits were very important for the applications of the two-dimensional (2-D) resistive sensor arrays, which were widely used in artificial electronic skin (Pan et al, 2014; Takei et al, 2010), tactile sensor system (Cheng et al, 2011; Kato et al, 2007; Vidal-Verdu et al, 2011; Yang et al, 2010), man-machine interaction input device (Wu et al, 2016), and wearable sensors (Mukhopadhyay, 2015; Shu et al, 2015;), and so forth. For accessing M × N elements in the 2-D resistive sensor arrays, many readout circuits including the inserting diode circuit (Prutchi and Arcan, 1993), the inserting transistor circuit (Mukhopadhyay, 2015; Pan et al, 2014; Tanaka et al, 1996), the passive integrator circuit (PIC) (Oballe-Peinado et al, 2016; Vidal-Verdu et al, 2011), the voltage feedback circuit (VFC) (Wu et al 2015, 2016), and the zero potential circuit (ZPC) (Cheng et al, 2011; Kim et al, 2016; Saxena et al, 2009, 2011; Yang et al, 2010), were proposed. In these readout circuits, many auxiliary electrical components such as diodes, transistors, capacitors, independent multiplexers, op-amps, current sources and independent analog-to-digital converters (ADCs) were necessary, but these components resulted in increased circuit complexity.…”

An Improved Zero Potential Circuit for Readout of a Two-Dimensional Resistive Sensor Array

“…The two-dimensional (2-D) resistive sensor arrays were used in artificial electronic skin [1], tactile sensors [2,3], chemical sensors [4], imaging sensors [5], human-machine interaction input devices [6], structural health monitoring tools [7], etc. For accessing all elements in the M × N resistive sensor arrays with low complexity, many readout circuits, including the inserting diode circuit [8,9], the inserting transistor circuit [5,10], the passive integrator circuit [11,12], the voltage feedback circuit (VFC) [4,6,13,14,15,16], and the zero potential circuit (ZPC) [2,3,17,18,19,20,21], were proposed with M shared row wires and N shared column wires, in which one end of each element was connected with one shared row wire and the other end of the element was connected with one shared column wire.…”