# US 2019/0173467 A1 · Phase relationship sensing system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0173467 A1 - Document ID: US20190173467A1 - Status: Published application - Kind: A1 - Application number: 16/268,153 - Filed: 2019-02-05 - Published: 2019-06-06 - Earliest claimed: 2017-08-02 - Assignees: Tactual Labs Co. - Applicants: Tactual Labs Co. - Inventors: Braon Moseley - Web page: https://patentgrep.com/patent/US20190173467A1 ## CPC - G06F 3/011: {Arrangements for interaction with the human body, e.g. for user immersion in virtual reality (blind teaching G09B21/00)} - H03K 17/962: {Capacitive touch switches} - G06F 3/017: {Gesture based interaction, e.g. based on a set of recognized hand gestures (interaction based on gestures traced on a digitiser G06F3/04883)} - G06F 3/0416: {Control or interface arrangements specially adapted for digitisers} - 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)} - G06F 3/044: by capacitive means - G06F 3/0446: {using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes} - 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 - H03K 2017/9613: {using two electrodes per touch switch} - H03K 2217/96071: characterised by the detection principle - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - H03K: PULSE TECHNIQUE (measuring pulse characteristics G01R; modulating sinusoidal oscillations with pulses H03C; transmission of digital information H04L; discriminator circuits detecting phase difference between two signals by counting or integrating cycles of oscillation H03D3/04; automatic control, starting, synchronisation or stabilisation of generators of electronic oscillations or pulses where the type of generator is irrelevant or unspecified H03L; coding, decoding or code conversion, in general H03M) ## Abstract A person or object is infused with a signal. The infused signal has a phase relationship with the signals that are transmitted from and used by a touch sensor, controller or wearable. The phase relationship of the infused signal is used in order to increase the ability of receivers at or on the touch sensor, controller or wearable to measure and determine touch events, such as hover. ## Claims ### Claim 1 A phase relationship system, comprising: a first plurality of antennas operably connected to a signal generator, wherein the signal generator is adapted to generate a plurality of signals, wherein at least one of the plurality of signals is generated having a first phase; a second plurality of antennas operably connected to a receiver, wherein the second plurality of antennas is adapted to receive at least one of the plurality of signals; an infusion electrode operably connected to the signal generator, wherein the infusion electrode is adapted to transmit a signal having a second phase that is in a predetermined phase relationship with respect to the at least one of the plurality of signals having a first phase, wherein the first phase and the second phase are different; and a signal processor adapted to process and determine measurements of received signals. ### Claim 2 (depends on 1) The phase relationship system of claim 1, wherein the first phase is 180 degrees different than the second phase. ### Claim 3 (depends on 1) The phase relationship system of claim 1, wherein the first phase is 90 degrees different than the second phase. ### Claim 4 (depends on 1) The phase relationship system of claim 1, wherein the infusion electrode is adapted to infuse a signal into a body part. ### Claim 5 (depends on 1) The phase relationship system of claim 1, wherein the at least one of the plurality of signals having the first phase has a frequency that is the same as the signal having the second phase. ### Claim 6 (depends on 1) The phase relationship system of claim 1, wherein the predetermined phase relationship is adapted to affect the detection of hover. ### Claim 7 (depends on 1) The phase relationship system of claim 1, wherein the predetermined phase relationship is adapted to provide a better signal to noise ratio. ### Claim 8 (depends on 1) The phase relationship system of claim 1, wherein the predetermined phase relationship is adapted to impact the detection of touch events. ### Claim 9 (depends on 1) The phase relationship system of claim 1, wherein the predetermined phase relationship changes periodically. ### Claim 10 (depends on 1) The phase relationship system of claim 1, wherein the predetermined phase relationship changes continuously. ### Claim 11 A method for determining touch events, comprising: generating a plurality of signals on a first plurality of antennas operably connected to a signal generator, wherein at least one of the plurality of signals is generated having a first phase; receiving at least one of the plurality of signals on at least one of a second plurality of antennas operably connected to a receiver, transmitting an infusion signal via an infusion electrode operably connected to the signal generator, wherein the infusion signal has a second phase that is in a predetermined phase relationship with respect to the at least one of the plurality of signals generated having a first phase, wherein the first phase and the second phase are different; and processing and determining measurements of received signals in order to determine a touch event. ### Claim 12 (depends on 1) The method of claim 1, wherein the first phase is 180 degrees different than the second phase. ### Claim 13 (depends on 1) The method of claim 1, wherein the first phase is 90 degrees different than the second phase. ### Claim 14 (depends on 1) The method of claim 1, wherein the infusion electrode is adapted to infuse a signal into a body part. ### Claim 15 (depends on 1) The method of claim 1, wherein the at least one of the plurality of signals having the first phase has a frequency that is the same as the signal having the second phase. ### Claim 16 (depends on 1) The method of claim 1, wherein the predetermined phase relationship affects the detection of hover. ### Claim 17 (depends on 1) The method of claim 1, wherein the predetermined phase relationship provides a better signal to noise ratio. ### Claim 18 (depends on 1) The method of claim 1, wherein the predetermined phase relationship impacts the detection of touch events. ### Claim 19 (depends on 1) The method of claim 1, wherein the predetermined phase relationship periodically changes. ### Claim 20 (depends on 1) The method of claim 1, wherein the predetermined phase relationship continuously changes.