Transmitter and transmitting method thereof

• US 10,444,867 B2
• Filed: 03/15/2017
• Issued: 10/15/2019
• Est. Priority Date: 11/08/2013
• Status: Active Grant

• Current Assignee: eGalax_eMPIA Technology Inc.
• Original Assignee: eGalax_eMPIA Technology Inc.
• Inventors: Chang, Chin-Fu
• Primary Examiner(s): Elahi, Towfiq
• Application Number:
  US15/459,186
• Publication Number:
  US 20170185174A1
• Time in Patent Office: 944 Days
• Field of Search: 345173
• CPC Class Codes: G06F 2203/04101 2.5D-digitiser, i.e. digitiser detecting the X/Y position of the input means, finger or stylus, also when it does not touch, but is proximate to the digitiser's interaction surface and also measures the distance of the input means within a short range in the Z direction, possibly with a separate measurement setup
• 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 3/03545 Pens or stylus
• CPC Class Codes: G06F 3/038 Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry
• CPC Class Codes: G06F 3/0383 Signal control means within the pointing device
• CPC Class Codes: G06F 3/04162 for exchanging data with external devices, e.g. smart pens, via the digitiser sensing hardware
• 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

The present invention provides a transmitter which is configured to transmit an electrical signal to a touch sensitive device according to a transmitter status. After analyzing the electrical signal, the touch sensitive device is able to find out the transmitter status and a relative position of the transmitter with respect to the touch sensitive device. The electrical signal is mixed from a plurality of signals having different frequencies.

Claims

1. A transmitter for transmitting an electrical signal to a touch sensitive device according to a transmitter status, so that after analyzing the electrical signal, the touch sensitive device is able to find out the transmitter status and a relative position of the transmitter with respect to the touch sensitive device, comprising:

a transmitting module for transmitting the electrical signal; and

a sensor module, comprises;

a first sensor having x possible statuses; and

a second sensor having y possible statuses, and

a processing module, coupled to the transmitting module and the sensor module, configured for generating the transmitter status according to a status of the sensor module,

wherein the electrical signal is mixed from a plurality of signals having different frequencies concurrently, wherein the signal strength of the electrical signal corresponding to a status of the first sensor, wherein a ratio of the signal strengths of a first frequency to a second frequency mixed in the electrical signal corresponding to a status of the second sensor.

2. The transmitter of claim 1, wherein a sensor in the sensor module includes one of the following:

a button;

a knob;

a pressure sensor;

an accelerometer; and

a gyroscope.

3. The transmitter of claim 1, wherein when the sensor module includes a plurality of sensors, a number of possible statuses of the transmitter status is a sum of the number of possible statuses of every one of the plurality of sensors.

4. The transmitter of claim 1, wherein the status representations of the first sensor or the second sensor is a n multiple of two, wherein n is an integer greater than or equal to 1.

5. A transmitting method for a transmitter, wherein the transmitter comprises a transmitting module, a sensor module includes a first sensor having x possible statuses and a second sensor having y possible statuses, and a processing module coupled to the transmitting module and the sensor module, the transmitting method comprising:

generating, by the processing module, a transmitter status according to a status of the sensor module; and

transmitting, by the transmitting module, an electrical signal to a touch sensitive device according to the transmitter status, so that after analyzing the electrical signal, the touch sensitive device is able to find out the transmitter status and a relative position of the transmitter with respect to the touch sensitive device, wherein the electrical signal is mixed from a plurality of signals having different frequencies concurrently, wherein the signal strength of the electrical signal corresponding to a status of the first sensor, wherein a ratio of the signal strengths of a first frequency to a second frequency mixed in the electrical signal corresponding to a status of the second sensor.

6. The transmitting method of claim 5, wherein a sensor in the sensor module includes one of the following:

a button;

a knob;

a pressure sensor;

an accelerometer; and

a gyroscope.

7. The transmitting method of claim 5, wherein when the sensor module includes a plurality of sensors, a number of possible statuses of the transmitter status is a sum of the number of possible statuses of every one of the plurality of sensors.

8. The transmitting method of claim 5, wherein the status representations of the first sensor or the second sensor is a n multiple of two, wherein n is an integer greater than or equal to 1.

9. A touch sensitive system, comprising:

a transmitter, further comprises;

a transmitting module for transmitting the electrical signal according to a transmitter status; and

a sensor module, comprises;

a first sensor having x possible statuses; and

a second sensor having y possible statuses, and

a processing module, coupled to the transmitting module and the sensor module, configured for generating the transmitter status according to a status of the sensor module, and

a touch sensitive device for receiving and analyzing the electrical signal and finding out the transmitter status and a relative position of the transmitter with respect to the touch sensitive device,

wherein the electrical signal is mixed from a plurality of signals having different frequencies concurrently, wherein the signal strength of the electrical signal corresponding to a status of the first sensor, wherein a ratio of the signal strengths of a first frequency to a second frequency mixed in the electrical signal corresponding to a status of the second sensor.

10. The touch sensitive system of claim 9, wherein a sensor in the sensor module includes one of the following:

a button;

a knob;

a pressure sensor;

an accelerometer; and

a gyroscope.

11. The touch sensitive system of claim 9, wherein when the sensor module includes a plurality of sensors, a number of possible statuses of the transmitter status is a sum of the number of possible statuses of every one of the plurality of sensors.

12. The touch sensitive system of claim 9, wherein the status representations of the first sensor or the second sensor is a n multiple of two, wherein n is an integer greater than or equal to 1.