Abstract: A digital finger for testing a touchscreen of an appliance using a testing robot is provided. A control circuit receives, from a load cell, first signals indicative of pressure applied by a finger holder simulating interaction with the touchscreen, the load cell being held by a load cell housing defining a channel for receiving the finger holder, such that when the finger holder is pressed onto the touchscreen, the finger holder moves to increase pressure against the load cell. The control circuit receives, from the appliance, second signals indicative of recognition of a touch to the touchscreen. The control circuit determines, response time of the touchscreen and/or the pressure required to operate the touchscreen based on the first and second signals.

Abstract: A digital finger for testing a touchscreen of an appliance using a testing robot is provided. A control circuit receives, from a load cell, first signals indicative of pressure applied by a finger holder simulating interaction with the touchscreen, the load cell being held by a load cell housing defining a channel for receiving the finger holder, such that when the finger holder is pressed onto the touchscreen, the finger holder moves to increase pressure against the load cell. The control circuit receives, from the appliance, second signals indicative of recognition of a touch to the touchscreen. The control circuit determines, response time of the touchscreen and/or the pressure required to operate the touchscreen based on the first and second signals.

Abstract: A digital finger for testing a touchscreen of an appliance using a testing robot is provided. A control circuit receives, from a load cell, first signals indicative of pressure applied by a finger holder simulating interaction with the touchscreen, the load cell being held by a load cell housing defining a channel for receiving the finger holder, such that when the finger holder is pressed onto the touchscreen, the finger holder moves to increase pressure against the load cell. The control circuit receives, from the appliance, second signals indicative of recognition of a touch to the touchscreen. The control circuit determines, response time of the touchscreen and/or the pressure required to operate the touchscreen based on the first and second signals.

Abstract: In order to improve the utilization of a memory in an electronic processor of a telephone exchange, serving for the temporary storage of one or more 4-bit groups (referred to as quartets) in zones of 16-bit capacity, a concentration unit in the input of a logic network and an expansion unit in the output thereof are controllable to switch incoming quartets from any group position to the position of the lowest-ranking group, or pair of groups, and to switch outgoing quartets from the lowest-ranking position, or pair of positions, to other group positions. The logic network is an arithmetic unit receiving the quartets from a data memory, or from a set of working registers serving for the storage of intermediate calculation results; the outgoing quartets are fed to the data memory, to the working registers, or to a buffer register connected to a control input of the arithmetic unit.