# US 12,216,837 B2 · Input device and interface device including the same

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- Number: US 12,216,837 B2
- Document ID: US12216837B2
- Status: Granted
- Kind: B2
- Application number: 17/219,688
- Filed: 2021-03-31
- Published: 2022-02-17
- Granted: 2025-02-04
- Earliest claimed: 2020-08-12
- Assignees: Samsung Display Co., Ltd.
- Applicants: Samsung Display Co., Ltd.
- Inventors: Taehee Lee; Chul Kim; Hee Seomoon; Hyeon Jun Lee
- Web page: https://patentgrep.com/patent/US12216837B2

## CPC

- G06F 3/03545: {Pens or stylus}
- G06F 3/0446: {using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes}
- A61B 5/02141: {Details of apparatus construction, e.g. pump units or housings therefor, cuff pressurising systems, arrangements of fluid conduits or circuits (A61B5/02233, A61B5/0235 take precedence)}
- A61B 5/022: by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers
- A61B 5/02416: {using photoplethysmograph signals, e.g. generated by infrared radiation (A61B5/14552 takes precedence)}
- A61B 5/02433: {for infrared radiation}
- A61B 5/14552: {Details of sensors specially adapted therefor}
- A61B 5/6897: {Computer input devices, e.g. mice or keyboards}
- G06F 3/015: {Input arrangements based on nervous system activity detection, e.g. brain waves [EEG] detection, electromyograms [EMG] detection, electrodermal response detection}
- G06F 3/0383: {Signal control means within the pointing device}
- G06F 3/0441: {using active external devices, e.g. active pens, for receiving changes in electrical potential transmitted by the digitiser, e.g. tablet driving signals}
- G06F 3/0442: {using active external devices, e.g. active pens, for transmitting changes in electrical potential to be received by the digitiser}
- G06F 3/0443: {using a single layer of sensing electrodes}
- G06F 2203/04111: Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)

## Abstract

An input device includes: a housing having a transmissive portion; a communicator in the housing and configured to exchange a signal externally; a pressure sensor in the housing along an inner circumferential surface of the housing; and a measurement sensor in the housing and facing the transmissive portion.

## Claims

### Claim 1

An input device comprising:
a housing having a transmissive portion;
a communicator in the housing and configured to exchange a signal externally;
a pressure sensor configured to detect a value of a pressure applied on an external circumferential surface of the housing toward an interior of the housing and disposed in the housing along an inner circumferential surface of the housing and curved along the inner circumferential surface of the housing; and
a measurement sensor in the housing and facing the transmissive portion to transmit or receive light through the transmissive portion,
wherein a portion of the pressure sensor facing the transmissive portion has an opening.

### Claim 2 (depends on 1)

The input device of claim 1, wherein a portion of the housing facing the pressure sensor includes rubber or plastic.

### Claim 3 (depends on 1)

The input device of claim 1, further comprising a support part spaced apart from the inner circumferential surface of the housing with the pressure sensor therebetween.

### Claim 4 (depends on 3)

The input device of claim 3, wherein the support part comprises a first portion having a shape conforming to a shape of the inner circumferential surface of the housing and a second portion surrounded by the first portion and reinforcing the first portion.

### Claim 5 (depends on 1)

The input device of claim 1, wherein the pressure sensor is a film-type pressure sensor and is flexible.

### Claim 6 (depends on 1)

The input device of claim 1, wherein the pressure sensor is transparent.

### Claim 7 (depends on 1)

The input device of claim 1, wherein the measurement sensor comprises a light emitter configured to provide light and a light receiver configured to detected reflected light.

### Claim 8 (depends on 7)

The input device of claim 7, wherein the light emitter comprises at least one of an infrared light source for emitting infrared light or a red light source for emitting red light, and the light receiver is a photodiode.

### Claim 9 (depends on 1)

The input device of claim 1, wherein the measurement sensor is a photoplethysmography sensor, and is configured to measure at least one of a blood pressure, oxygen saturation, or heart rate of a user.

### Claim 10 (depends on 1)

The input device of claim 1, further comprising a display configured to display information obtained from the pressure sensor and the measurement sensor.

### Claim 11 (depends on 1)

The input device of claim 1, wherein the input device is an active pen, and the communicator is configured to receive an uplink signal from an external source and to output a downlink signal.

### Claim 12

An interface device comprising:
a display device comprising a display layer and a sensor layer on the display layer; and
an input device configured to receive an uplink signal from the sensor layer and to output a downlink signal to the sensor layer,
wherein the input device comprises a housing, a measurement sensor and a pressure sensor, and
wherein the pressure sensor is configured to detect a value of a pressure applied on an external circumferential surface of the housing toward an interior of the housing to measure a blood pressure of a user and is disposed in the housing along an inner circumferential surface of the housing and is curved along the inner circumferential surface of the housing,
wherein the housing has a transmissive portion facing the measurement sensor, and
wherein an opening is defined in a portion of the pressure sensor facing the transmissive portion.

### Claim 13 (depends on 12)

The interface device of claim 12, wherein the input device further comprises:
a support part in the housing;
a communicator in the housing and configured to receive the uplink signal and to transmit the downlink signal; and
an electrode electrically connected to the communicator,
wherein the pressure sensor and the measurement sensor are in the housing.

### Claim 14 (depends on 13)

The interface device of claim 13, wherein the measurement sensor faces the transmissive portion, and the measurement sensor transmits or receives light through the transmissive portion.

### Claim 15 (depends on 13)

The interface device of claim 13, wherein an opening is defined in a portion of the pressure sensor facing the transmissive portion.

### Claim 16 (depends on 13)

The interface device of claim 13, wherein the pressure sensor is between the housing and the support part, and the support part comprises a first portion having a shape conforming to a shape of the inner circumferential surface of the housing and a second portion surrounded by the first portion and reinforcing the first portion.

### Claim 17 (depends on 13)

The interface device of claim 13, wherein a portion of the housing facing the pressure sensor includes rubber or plastic.

### Claim 18 (depends on 12)

The interface device of claim 12, wherein the measurement sensor comprises a light emitter configured to provide light and a light receiver configured to detect reflected light, wherein the light emitter comprises at least one of an infrared light source for emitting infrared light or a red light source for emitting red light, and the light receiver is a photodiode.

### Claim 19 (depends on 12)

The interface device of claim 12, wherein the pressure sensor is a film-type pressure sensor and is flexible.
