DETECTION DEVICE

• US 20170123567A1
• Filed: 10/18/2016
• Published: 05/04/2017
• Est. Priority Date: 10/30/2015
• Status: Abandoned Application

• Current Assignee: Panasonic Intellectual Property Management Co., Ltd. (Panasonic Holdings Corporation)
• Original Assignee: Panasonic Intellectual Property Management Co., Ltd. (Panasonic Holdings Corporation)
• Inventors: KITADA, Takashi, KOSUGI, Naoki, MIYAGAWA, Utaro
• Application Number:
  US15/296,699
• Publication Number:
  US 20170123567A1
• Time in Patent Office: Days
• CPC Class Codes: G06F 2203/04104 Multi-touch detection in digitiser, i.e. details about the simultaneous detection of a plurality of touching locations, e.g. multiple fingers or pen and finger
• CPC Class Codes: G06F 3/0334 Foot operated pointing devices
• CPC Class Codes: G06F 3/04166 Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving Synchronisation with the driving of the display or the backlighting unit to avoid interferences generated internally G06F3/04184
• CPC Class Codes: G06F 3/0442 using active external devices, e.g. active pens, for transmitting changes in electrical potential to be received by the digitiser
• CPC Class Codes: G06F 3/0446 using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes

Abstract

A detection device includes a plurality of transmitter electrodes that are provided in a predetermined area, a plurality of receiver electrodes that are provided in the predetermined area and that each intersect with the plurality of transmitter electrodes, a transmitter that is connected to the plurality of transmitter electrodes, a receiver that is connected to the plurality of receiver electrodes, detection electrodes that are provided outside the predetermined area and that are connected to at least one of the transmitter and the receiver, and an operation detector configured to detect an operation of a user based on a reception result of the receiver.

Claims

1. A detection device comprising:

a plurality of transmitter electrodes that are provided in a predetermined area;

a plurality of receiver electrodes that are provided in the predetermined area and that each intersect with the plurality of transmitter electrodes;

a transmitter that is connected to the plurality of transmitter electrodes;

a receiver that is connected to the plurality of receiver electrodes;

a detection electrode that is provided outside the predetermined area and that is connected to at least one of the transmitter and the receiver; and

an operation detector configured to detect an operation of a user based on a reception result of the receiver.

2. The detection device according to claim 1, comprising a first signal path extending from the transmitter to the receiver through the plurality of transmitter electrodes and the plurality of receiver electrodes.

3. The detection device according to claim 2, wherein

the detection electrode is connected to the receiver, and

the detection device includes a second signal path extending from the transmitter to the receiver through at least one of the plurality of transmitter electrodes, the user, and the detection electrode.

4. The detection device according to claim 2, wherein

the detection electrode is connected to the transmitter, and

the detection device includes a third signal path extending from the transmitter to the receiver through the detection electrode, the user, and at least one of the plurality of receiver electrodes.

5. The detection device according to claim 1, wherein the detection electrode is disposed at a position that allows the detection electrode to contact with the user.

6. The detection device according to claim 5, wherein the detection electrode is disposed on a floor.

7. The detection device according to claim 1, wherein

the detection electrode is connected to the transmitter, and

the transmitter enable to output a plurality of signals that can be distinguished from each other, and to transmit the plurality of signals singly to each of the plurality of transmitter electrodes and the detection electrode.

8. The detection device according to claim 7, wherein the transmitter enable to output the plurality of signals at different timings from each other.

9. The detection device according to claim 1, comprising ground having capacitance between the ground and the detection electrode.

10. The detection device according to claim 1, comprising:

a tag that allows the user to carry; and

an electric field communication unit capable of communicating with the tag through the detection electrode and the user, by using an electric field.

11. The detection device according to claim 1, wherein

the transmitter includes a first transmitter that outputs a signal to the plurality of transmitter electrodes, and a second transmitter that outputs a signal to the detection electrode, and

the first transmitter and the second transmitter are synchronized with each other.