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US 9,134,830 B1Granted
Touch screen scale
AssigneeAmazon Technologies, Inc.
InventorsMichael Martin Lee, Gabriel Isaiah Rowe
Life of this patent
Estimating the term…
Abstract
A touch screen on a user device is used to measure the weight of one or more objects on a measurement device that is placed on the touch screen. The measurement device may include a plurality of styluses. The user device receives pressure data indicating the amount of pressure or force caused by the measurement device and one or more objects and calculates a weight based on the pressure data. The pressure data may be received from one or more of the measurement device or from the touch screen.
Claims14
A method comprising:
- detecting, by a device, a presence of a measurement device in contact with a touch screen surface, wherein the measurement device comprises a first stylus, a second stylus, and communication circuitry;
- establishing, by the device, a communication channel with the communication circuitry of the measurement device;
- receiving over the communication channel, by the device, a first set of measurements from the measurement device when the first stylus and the second stylus of the measurement device are in contact with the touch screen surface of the device and no object is located on a measurement surface of the measurement device, wherein the first set of measurements comprise a first measurement of pressure exerted on the touch screen surface by the first stylus and a second measurement of pressure exerted on the touch screen surface by the second stylus;
- receiving, by the device, the second set of measurements from the measurement device when the first stylus and the second stylus of the measurement device are in contact with the touch screen surface and an object is located on the measurement surface, wherein the second set of measurements comprises a third measurement of pressure exerted on the touch screen surface by the first stylus and a fourth measurement of pressure exerted on the touch screen surface by the second stylus;
- subtracting the first measurement from the third measurement to obtain a first value representing a first change in pressure exerted on the touch screen surface by the object;
- subtracting the second measurement from the fourth measurement to obtain a second value representing a second change in pressure exerted on the touch screen surface by the object;
- determining, by the device, a weight of the object using the first value and the second value;
- and
- displaying the weight of the object on a display of the device.
6 more elements
A touch screen device comprising:
- a touch screen;
- a processing device operatively coupled to the touch screen, the processing device configured to:
- receive a first set of measurements from a sensing component when a first stylus and a second stylus of the sensing component are in contact with a touch screen surface of the touch screen device and no object is located on a measurement surface of the sensing component, wherein the first set of measurements comprise a first measurement of pressure exerted on the touch screen surface by the first stylus and a second measurement of pressure exerted on the touch screen surface by the second stylus
- receive, by the touch screen device, a second set of measurements from the sensing component when the first stylus and the second stylus of the sensing component are in contact with the touch screen surface and an object is located on the measurement surface, wherein the second set of measurements comprises a third measurement of pressure exerted on the touch screen surface by the first stylus and a fourth measurement of pressure exerted on the touch screen surface by the second stylus
- subtract the first measurement from the third measurement to obtain a first change in pressure exerted on the touch screen surface by the object;
- subtract the second measurement from the fourth measurement to obtain a second change in pressure exerted on the touch screen surface by the object;
- and
- determine a weight of the object using the first change in pressure and the second change in pressure.
5 more elements
A non-transitory computer-readable storage medium storing instructions which, when executed, cause a touch screen device to perform operations comprising:
- detecting, by a touch screen of the touch screen device, a presence of a sensing component placed on the touch screen;
- receiving, by the touch screen device a first set of measurements from the sensing component when a first stylus and a second stylus of the sensing component are in contact with a touch screen surface of the touch screen device and no object is located on a measurement surface of the sensing component, wherein the first set of set of measurements comprise a first measurement of pressure exerted on the touch screen surface by the first stylus and a second measurement of pressure exerted on the touch screen surface by the second stylus;
- receiving, by the touch screen device, a second set of measurements from the sensing component when the first stylus and the second stylus of the sensing component are in contact with the touch screen surface and an object is located on the measurement surface, wherein the second set of measurements comprises a third measurement of pressure exerted on the touch screen surface by the first stylus and a fourth measurement of pressure exerted on the touch screen surface by the second stylus
- subtracting the first measurement from the third measurement to obtain a first change in pressure exerted on the touch screen surface by the object;
- subtracting the second measurement from the fourth measurement to obtain a second change in pressure exerted on the touch screen surface by the object;
- and
- determining a weight of the object using the first change in pressure and the second change pressure.
4 more elements
Dependencies are inferred from the claim text.