# US 2020/0401866 A9 · Symbol verification for an intelligent label device

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- Number: US 2020/0401866 A9
- Document ID: US20200401866A9
- Status: Published application
- Kind: A9
- Application number: 15/928,300
- Filed: 2018-03-22
- Published: 2020-12-24
- Earliest claimed: 2015-07-31
- Assignees: Chromera, Inc.
- Inventors: Paul Atkinson
- Web page: https://patentgrep.com/patent/US20200401866A9

## CPC

- G06K 19/07707: {the visual interface being a display, e.g. LCD or electronic ink}
- G09G 5/003: {Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto (specific for a CRT G09G1/165; for a flat panel G09G3/2092)}
- G06F 3/14: Digital output to display device {; Cooperation and interconnection of the display device with other functional units}
- G06K 19/06028: {using bar codes}
- G06K 19/0702: {the arrangement including a battery}
- G06K 19/0717: {the sensor being capable of sensing environmental conditions such as temperature history or pressure}
- G06K 19/07758: {arrangements for adhering the record carrier to further objects or living beings, functioning as an identification tag}
- G09G 3/04: for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments {using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions}
- G09G 2320/066: for control of contrast
- G09G 2380/04: Electronic labels
- G06K: GRAPHICAL DATA READING (image or video recognition or understanding G06V); PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00)
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)

## Abstract

Briefly, a method for verifying the visual perceptibility of a display is provided. An intended message is written to a bistable display. Pixels that comprise portions of the message are measured and evaluated to determine if the message actually displayed on the bistable display was perceptible by a human or a machine. In some cases, information regarding the message actually perceivable from the display may be stored for later use. Responsive to determining that a message is perceivable or not perceivable, alarms may be set, one or more third parties notified, or additional display features may be set.

## Claims

### Claim 1

An electronic device, intelligent label comprising,
a processor;
a memory;
an electro-optic display comprising message pixels;
message pixel setting circuitry;
message pixel detection circuitry for electrically measuring a characteristic of a set of the message pixels; and
wherein the memory stores rules that are used by the processor to evaluate a visible message presented on the display by the set of the message pixels.

### Claim 2 (depends on 1)

The electronic device of claim 1, wherein the memory is constructed to store message information.

### Claim 3 (depends on 2)

The electronic device of claim 2, wherein the memory is constructed to store evaluation information.

### Claim 4 (depends on 3)

The electronic device of claim 3, wherein the evaluation information comprises verification information, determination information, contrast information, or comparison information.

### Claim 5 (depends on 2)

The electronic device of claim 2, wherein the evaluation information comprises contrast information that includes contrast levels, contrast differentials or contrast ratios.

### Claim 6 (depends on 2)

The electronic device of claim 2, wherein the evaluation information comprises confidence information that includes confidence values and rules for determining certainty, ambiguity or uncertainty according to the measured electrical characteristics of the message pixels.

### Claim 7 (depends on 1)

The electronic device of claim 1, wherein the measured characteristic is an electrical characteristic.

### Claim 8 (depends on 7)

The electronic device of claim 7, wherein the measured electrical characteristic of the message pixels is voltage, resistance or capacitance.

### Claim 9 (depends on 7)

The electronic device of claim 7, wherein the measured electrical characteristic of one or more of the message pixels of the set of message pixel corresponds to a visual state within the human perceptible spectrum.

### Claim 10 (depends on 7)

The electronic device of claim 7, wherein the measured electrical characteristic of one or more of the message pixels of the set of message pixel corresponds to a visual state outside the human perceptible spectrum.

### Claim 11 (depends on 7)

The electronic device of claim 7, wherein the processor is constructed to store the detected electrical characteristics of the message pixels in memory.

### Claim 12 (depends on 7)

The electronic device of claim 7, wherein the processor is constructed to evaluate the detected electrical characteristics of the set of message pixels.

### Claim 13 (depends on 1)

The electronic device of claim 1, wherein the processor is constructed to verify or determine the message presented by the electro-optic display.

### Claim 14 (depends on 1)

The electronic device of claim 1, wherein the processor is constructed to determine the perceptibility of the visible message presented by the electro-optic display.

### Claim 15 (depends on 14)

The electronic device of claim 14, wherein processor is constructed to determine a confidence value or index of the perceptibility of the visible message.

### Claim 16 (depends on 15)

The electronic device of claim 15, wherein the confidence value or index is generated using measured values of electrical characteristics of message pixels, values according to the importance of particular message pixels to the perceptibility of the message or the accuracy of the perceptible information.

### Claim 17 (depends on 1)

The electronic device of claim 1, further comprising one or more sensors.

### Claim 18 (depends on 17)

The electronic device of claim 17, wherein the sensors include a temperature sensor, a humidity sensor, and altitude sensor, a pressure sensor, an optical sensor, a vibration sensor, a shock sensor, a humidity sensor, a biological or a chemical sensor, a gas sensor, a pH sensor, a magnetic sensor, or a smoke sensor.

### Claim 19 (depends on 1)

The electronic device of claim 1, wherein the memory is constructed to store calibration rules or calibration data.

### Claim 20 (depends on 19)

The electronic device of claim 19, wherein the processor is constructed to calibrate the message pixel detection circuitry.

### Claim 21 (depends on 1)

The electronic device of claim 1, further comprising a clock or timer.

### Claim 22 (depends on 1)

The electronic device of claim 1, further comprising algorithms or circuitry configured to reduce noise or enhance detection of electrical characteristics of the set of message pixels.

### Claim 23 (depends on 1)

The electronic device of claim 1, further comprising a plurality of electro-optic displays.

### Claim 24 (depends on 23)

The electronic device of claim 23, wherein the electrical characteristics of the message pixels of the electro-optic display is dependent on the detected electrical characteristics of another display.

### Claim 25 (depends on 24)

The electronic device of claim 24, wherein the electro-optic displays are of different types.

### Claim 26 (depends on 1)

The electronic device of claim 1, further comprising a power source.

### Claim 27 (depends on 20)

The electronic device of claim 20, wherein the power supply is an internal battery or capacitor.

### Claim 28 (depends on 1)

The electronic device of claim 1, further comprising a power harvester.

### Claim 29 (depends on 28)

The electronic device of claim 28, wherein the power supply is harvested with a motion detector, RF device, optical detector, or photovoltaic cell.

### Claim 30 (depends on 1)

The electronic device of claim 1, further comprising a wired or wireless communication device.

### Claim 31 (depends on 30)

The electronic device of claim 30, wherein the communication device is an RFID radio, a WiFi radio, a Zigbee radio, or an NFC radio.

### Claim 32 (depends on 1)

The electronic device of claim 1, further configured to generate an alert, alarm or message responsive to evaluating the visible message.

### Claim 33 (depends on 32)

The electronic device of claim 32, wherein the alert, alarm or message is presented by the electro-optic indicator.

### Claim 34 (depends on 32)

The electronic device of claim 32, further comprising a wired or wireless communication device;
and wherein the alert, alarm or message is presented using the communication device.

### Claim 35 (depends on 1)

The electronic device of claim 1, further comprising an actuator constructed operably coupled to the state detection circuitry.

### Claim 36 (depends on 35)

The electronic device of claim 35, wherein the actuator is a sensor, clock or timer.

### Claim 37 (depends on 35)

The electronic device of claim 35, wherein the actuator is a mechanical, electrical or wireless apparatus.

### Claim 38 (depends on 1)

The electronic device of claim 1, wherein the processor is constructed to initiate measurement of electrical characteristics of message pixels (1) before message pixels are set by the message pixel setting circuitry; (2) immediately after message pixels are set by the message pixel setting circuitry; (3) periodically over time; or (4) in response to a command.

### Claim 39 (depends on 1)

The electronic device of claim 1, wherein the processor is constructed to store in the memory a historical record of the measured electrical characteristics of the message pixels, verified messages or determined messages, calculated perceptibility values or confidence values.

### Claim 40 (depends on 39)

The electronic device of claim 39, wherein the processor is further constructed to algorithmically predict using the historical record, changes in, or future electrical characteristics of message pixels according the historical record.

### Claim 41 (depends on 40)

The electronic device of claim 40, wherein the processor is further constructed to refresh the message pixels according to the measured electrical characteristics of the message pixels or the historical record.

### Claim 42 (depends on 40)

The electronic device of claim 40, wherein the processor is further constructed to generate an alert, alarm or message according to the measured electrical characteristics of the message pixels or the historical record.

### Claim 43 (depends on 1)

The electronic device of claim 1, wherein processor is configured to algorithmically compare the measured electrical characteristics of message pixels to values previously stored according to the intended message.

### Claim 44 (depends on 1)

The electronic device of claim 1, further comprising algorithms or circuitry constructed to reduce noise or enhance detection of electrically measurable properties of message pixels.

### Claim 45 (depends on 44)

The electronic device of claim 44, further comprising common-mode noise rejection, averaging, or filtering.

### Claim 46 (depends on 1)

The electronic device of claim 1, where the processor is constructed to calibrate the message pixel detection circuitry using sensed data.

### Claim 47

An integrated electronic device comprising,
a processor;
a memory;
message pixel setting circuitry constructed to set message pixels;
message pixel detection circuitry constructed to detect an electrical characteristic of a set of the message pixels; and
wherein the message pixel setting circuitry and the message pixel detection circuitry have shared circuitry.

### Claim 48 (depends on 47)

The electronic device of claim 47 wherein the shared circuitry includes message pixel electrodes.

### Claim 49 (depends on 47)

The electronic device of claim 47 wherein the shared circuitry includes connections to the processor.

### Claim 50 (depends on 47)

The electronic device of claim 47 wherein the shared circuitry includes connections to driver circuitry.

### Claim 51

An integrated electronic device comprising,
a processor;
a memory;
a flexible display comprising message pixels;
message pixel setting circuitry constructed to set message pixels on the display;
message pixel detection circuitry constructed to detect an electrical characteristic of one or more of the message pixels;
a flexible substrate supporting the setting circuitry and the detection circuitry; and
wherein the electronic device is constructed to be flexible.

### Claim 52

An integrated electronic device comprising,
a processor;
a memory;
a display;
message pixel setting circuitry constructed to set message pixels on the display;
message pixel detection circuitry constructed to detect an electrical characteristic of one or more message pixels;
a rigid substrate supporting the display, the setting circuitry and the detection circuitry; and
wherein the electronic device is constructed to be rigid.