Interactive media can provide a stimulating environment for a user when learning or developing a skill. For example, increasing a child's vocabulary is a seminal process as part of the child's growth and development. Enhancing the development of a child's vocabulary often require stimulating exercises to help keep a child engaged when learning and processing new words. Interactive activities, such as through interactive books and other media provide a platform that helps teach children to learn and expand their vocabulary while keeping a child focused and engaged with a given activity.
This application claims priority to U.S. Provisional Application No. 62/912,562, filed Oct. 8, 2019, which is incorporated by reference herein in its entirety.
The present disclosure is directed to interactive media. The interactive media may be in the form of books, posters, pamphlets, brochures, handouts, and the like. Images and text may be printed on paper, cardboard, or other types of materials such as canvas, linen, leather, and the like. The interactive paper media may comprise electronics that are configured to emit audio and/or visual signals for enhancing user experience and/or for improving learning when used in an educational context.
Disclosed herein, in some embodiments is an interactive paper-based book comprising: a back cover comprising a plurality of touch sensors and an audio module; and a plurality of paper pages that are stacked together on top of each other, wherein each of the pages comprises a grid array of images associated with a plurality of words, wherein the grid array of images on the plurality of pages are aligned with the plurality of touch sensors on the back cover, wherein each of the pages and a set of audio files for each page are configured to be activated using a page button corresponding to the respective page, wherein the page buttons are located on one or more portions of the book, and wherein the audio module is configured to play one or more sounds associated with an image on an activated page when the user touches the image on the activated page.
In some embodiments, the plurality of touch sensors are disposed on a touch sensor substrate. In some embodiments, the plurality of touch sensors are in electrical communication with the audio module. In some embodiments, the plurality of touch sensors are in electrical communication with the audio module through electric circuitry. In some embodiments, the plurality of touch sensors are in electrical communication with the audio module using conductive ink. In some embodiments, the conductive ink a metallic-based ink. In some embodiments, the conductive ink comprises silver-based conductive ink, copper-based ink, a carbon-based ink. In some embodiments, one or more touch sensors of the plurality of touch sensors comprises a capacitive touch element. In some embodiments, the audio module comprises a printed circuit board (PCB). In some embodiments, the audio module comprises a flexible circuit board. In some embodiments, the audio module comprises a memory module and processor. In some embodiments, the audio module is configured to play the one or more sounds using a speaker. In some embodiments, the speaker is disposed within the back cover. In some embodiments, the back cover comprises one or more speaker holes. In some embodiments, at least one speaker hole of the one or more speaker holes is not visible external to the back cover, wherein the speaker hole(s) that are not visible is configured to provide diaphragmatic resonance of the one or more sounds. In some embodiments, each page button corresponds to a touch sensor. In some embodiments, the one or more sounds are audio mastered. In some embodiments, the grid array comprises an “m”דn” format, wherein “m” represents a predetermined number of rows, and “n” represents a predetermined number of columns. In some embodiments, the grid array comprises a square grid array, wherein the number of rows is equal to the number of columns. In some embodiments, the grid array comprises a rectangular grid array, wherein the number of rows is different from the number of columns. In some embodiments, the grid array comprises from about 5 rows to about 20 rows, and from about 4 columns to about 16 columns. In some embodiments, the plurality of paper pages comprises at least about 5 paper pages. In some embodiments, the plurality of paper pages comprises at least about 10 paper pages. In some embodiments, the plurality of paper pages comprises at least about 20 paper pages. In some embodiments, the interactive paper-based book further comprises at least about 500, 1000, 10000, or 50000 images.
Disclosed herein, in some embodiments, is an interactive paper-based book comprising: a back cover comprising an audio module; a plurality of paper pages that are stacked together on top of each other; and a plurality of touch sensors, where each paper page comprises a subset of the plurality of touch sensors disposed thereon, wherein each of the pages comprises a grid array of images associated with a plurality of words, wherein for each page, each image of the corresponding grid array of images is aligned with a corresponding touch sensor, wherein each touch sensor is in electrical communication with the audio module; wherein each of the pages and a set of audio files for each page are configured to be activated using a page button corresponding to the respective page, wherein the page buttons are located on one or more portions of the book, and wherein the audio module is configured to play one or more sounds associated with an image on an activated page when the user touches the image on the activated page.
In some embodiments, the plurality of touch sensors are embedded with the plurality of paper pages. In some embodiments, the plurality of touch sensors are in electrical communication with the audio module. In some embodiments, the plurality of touch sensors are in electrical communication with the audio module through electric circuitry. In some embodiments, the plurality of touch sensors are in electrical communication with the audio module using conductive ink. In some embodiments, the conductive ink a metallic-based ink. In some embodiments, the conductive ink comprises silver-based conductive ink, copper-based ink, a carbon-based ink. In some embodiments, the electric circuitry of the plurality of touch sensors from each page travels through a spine of the interactive book so as to be in electrical communication with the audio module. In some embodiments, one or more touch sensors of the plurality of touch sensors comprises a capacitive touch element. In some embodiments, the audio module comprises a printed circuit board (PCB). In some embodiments, the audio module comprises a flexible circuit board. In some embodiments, the audio module comprises a memory module and processor. In some embodiments, the audio module is configured to play the one or more sounds using a speaker. In some embodiments, the speaker is disposed within the back cover. In some embodiments, the back cover comprises one or more speaker holes. In some embodiments, at least one speaker hole of the one or more speaker holes is not visible external to the back cover, wherein the speaker hole(s) that are not visible is configured to provide diaphragmatic resonance of the one or more sounds. In some embodiments, each page button corresponds to a touch sensor. In some embodiments, the one or more sounds are audio mastered. In some embodiments, the grid array comprises an “m”דn” format, wherein “m” represents a predetermined number of rows, and “n” represents a predetermined number of columns. In some embodiments, the grid array comprises a square grid array, wherein the number of rows is equal to the number of columns. In some embodiments, the grid array comprises a rectangular grid array, wherein the number of rows is different from the number of columns. In some embodiments, the grid array comprises from about 5 rows to about 20 rows, and from about 4 columns to about 16 columns. In some embodiments, the plurality of paper pages comprises at least about 5 paper pages. In some embodiments, the plurality of paper pages comprises at least about 10 paper pages. In some embodiments, the plurality of paper pages comprises at least about 20 paper pages. In some embodiments, the interactive paper-based book further comprises at least about 500, 1000, 10000, or 50000 images.
Disclosed herein, in some embodiments, is an interactive poster comprising: a back cover comprising a plurality of touch sensors and an audio module; and one or more images on an opposite side of the back cover, wherein each image is associated with a plurality of words, wherein each image is aligned with a corresponding touch sensor of the plurality of touch sensors on the back cover, wherein the audio module is configured to play one or more sounds associated with an image of the one or more images when the user touches the image.
Disclosed herein, in some embodiments, is a method for providing an interactive environment, the method comprising: a) providing an interactive paper-based book comprising: a back cover comprising a plurality of touch sensors and an audio module; and a plurality of paper pages that are stacked together on top of each other, wherein each of the pages comprises a grid array of images associated with a plurality of words, wherein the grid array of images on the plurality of pages are aligned with the plurality of touch sensors on the back cover, wherein each of the pages and a set of audio files for each page are configured to be activated using a page button corresponding to the respective page, wherein the page buttons are located on one or more portions of the book, and wherein the audio module is configured to play one or more sounds associated with an image on an activated page when the user touches the image on the activated page; b) activating a page and corresponding set of audio files; c) receiving an input for one or more sounds associated with an image on the activated page; and d) playing one or more sounds associated with the image.
Disclosed herein, in some embodiments, is a method for providing an interactive game environment, the method comprising: a) providing an interactive paper-based book comprising: a back cover comprising a plurality of touch sensors and an audio module; and a plurality of paper pages that are stacked together on top of each other, wherein each of the pages comprises a grid array of images associated with a plurality of words, wherein the grid array of images on the plurality of pages are aligned with the plurality of touch sensors on the back cover, wherein each of the pages and a set of audio files for each page are configured to be activated using a page button corresponding to the respective page, wherein the page buttons are located on one or more portions of the book, and wherein the audio module is configured to play one or more sounds associated with an image on an activated page when the user touches the image on the activated page; b) activating a page and corresponding set of audio files; c) playing one or more sounds associated with a first randomly selected image from the activated page; d) receiving input to the touch sensor aligned with the first randomly selected image; and e) playing one or more sounds associated with a second randomly selected image from the activated page.
In some embodiments, for any method disclosed herein, the grid array comprises an “m”דn” format, wherein “m” represents a predetermined number of rows, and “n” represents a predetermined number of columns. In some embodiments, for any method disclosed herein, the grid array comprises a square grid array, wherein the number of rows is equal to the number of columns. In some embodiments, for any method disclosed herein, the grid array comprises a rectangular grid array, wherein the number of rows is different from the number of columns. In some embodiments, for any method disclosed herein, the grid array comprises from about 5 rows to about 20 rows, and from about 4 columns to about 16 columns. In some embodiments, for any method disclosed herein, the plurality of paper pages comprises at least about 5 paper pages. In some embodiments, for any method disclosed herein, the plurality of paper pages comprises at least about 10 paper pages. In some embodiments, for any method disclosed herein, the plurality of paper pages comprises at least about 20 paper pages. In some embodiments, for any method disclosed herein, further comprising at least about 500, 1000, 10000, or 50000 images.
These and other embodiments are described in further detail in the following description related to the appended drawing figures.
Specific embodiments of the disclosed devices, delivery systems, or methods will now be described with reference to the drawings. Nothing in this detailed description is intended to imply that any particular component, feature, or step is essential to the invention.
Specific embodiments of the disclosed device and method of use will now be described with reference to the drawings. Nothing in this detailed description is intended to imply that any particular component, feature, or step is essential to the invention.
Devices and methods as disclosed herein provide an interactive book configured to enhance a user's vocabulary. In some embodiments, the interactive book is configured to enhance other knowledge areas for a user such as enhancing the pronunciation of words, or learning topics such as math, science, music, geography, history and so on. In some embodiments, the interactive book encompasses the scope of the STEAM education. In some embodiments, an interactive paper-based book comprises a back cover comprising a plurality of touch sensors and an audio module and a plurality of paper pages that are stacked together on top of each other. In some embodiments, each of the pages comprises a grid array of images associated with a plurality of words. In some embodiments, the grid array of images on the plurality of pages are aligned with the plurality of touch sensors on the back cover. In some embodiments, each of the pages and a set of audio files for each page are configured to be activated using a page button corresponding to the respective page. In some embodiments, the page buttons are located on one or more portions of the book. In some embodiments, the audio module is configured to play one or more sounds associated with an image on an activated page when the user touches the image on the activated page.
In some embodiments, the images on the page of the interactive book may be provided in an m×n grid format, wherein “m” represents the number of rows in the grid format, and “n” represents the number of columns in the grid format. The grid format may comprise one or more rows and columns. A grid format as described herein may be an array or a matrix comprising a plurality of interactive elements. In some embodiments, a plurality of images provided on a page correlate to the plurality of interactive elements. In some embodiments, “m” and “n” of the grid format may be any integer, and may be the same or different. In some embodiments, the images may be provided in a grid format comprising 9 rows and 8 columns. In some embodiments, the grid format for any page of the interactive book comprises from about 1 row to about 20 rows and from about 1 column to about 20 columns.
In some embodiments, the plurality of locators are not provided in grid format. In some embodiments, the locators may be placed along a perimeter of the page around a large picture, for example as shown in
In some embodiments, the interactive book may be a “talking” picture dictionary. The “talking” picture dictionary can provide a vocabulary immersion program. Children can use the “talking” picture dictionary to learn how to pronounce a variety of different new words. In some embodiments, the learning process is enhanced by a sound speaker within the book emitting an audio recording of each word when a child presses on the image of the word on the page. The image may be aligned with a touch sensor on the base of the book as described herein. In some embodiments, the touch sensor may be a pressure sensitive button, which is activated when the child presses on the image on the page and transmits a touch force to the underlying pressure sensitive button. In other embodiments, the touch sensor may be incorporated into the page as a conductive ink button, which can be activated by merely touching the button (as opposed to pressing on the button). The audio recording may include a human native speaker pronunciation of each word. In some embodiments, the audio recordings may include a variety of correct pronunciations of common words that are encountered in everyday conversations or life. In some embodiments, the images and sounds can be customized to help trigger recognition (regardless of the user's native language) and prepare the user's brain for optimal word absorption in the target language of the book.
In some alternative embodiments, the sound speaker need not be within the book, but may be adjacent to the book. For example, the sound speaker may be provided by a smart speaker that is used at home.
The book may comprise a memory module for storing audio recordings of a plurality of words (as described herein). The number of words and audio recordings may range from 10s, 100s, 1000s, and tens of 1000s of words. In some embodiments, the number of words and audio recordings stored on the memory module is from about 1 to about 100,000. In some embodiments, the number of words and audio recordings stored on the memory module is from about 1 to about 1,000,000. In some embodiments, the number of words and audio recordings stored on the memory module is from about 10 to about 500. In some embodiments, the number of words and audio recordings stored on the memory module is from about 100 to about 1,000. In some embodiments, the number of words and audio recordings stored on the memory module is from about 100 to about 10,000. In some embodiments, the number of words and audio recordings stored on the memory module is from about 1,000 to about 100,000. In some embodiments, the number of words and audio recordings stored on the memory module is from about 10,000 to about 1000,000. Each word may have a sound pronunciation of the word in one or more languages. The one or more languages may include a child's native language, as well as one or more foreign languages.
In some embodiments, each word may include a plurality of different voice recordings. For example, each time an image of a word on the page is touched by a user, a different audio recording of the word may be emitted. The different audio recordings may include one or more human speakers saying each word in a different manner or tone (e.g. quickly, slowly, carefully, in a humorous manner, in an exaggerated manner, syllabically, etc.). The audio recordings may be in a same language or in different languages. The audio recordings may be emitted in order or randomized. In some embodiments, every time a user's finger touches an image on the paper, randomization can allow for up to a number of different, human native speakers pronouncing the same word (emitted via the audio recordings), thus providing a rich, aural tool for language learning.
In some embodiments, the interactive elements can allow different pages of the book to be activated. For example, referring to
For example, when a user presses page button 01, the first page (page 1) of the book may activated. The activation of a page may be indicated by light and/or audio signals. For example, page button 01 may light up when pressed, to show that page 1 has been activated. In some cases, an audio signal saying “page 1” may be emitted when page 1 has been activated. In some embodiments, different colored lights may be associated with the different page buttons. For example, page button 01 may have a green light when activated, page button 02 may have a blue light when activated, page button 03 may have a pink light when activated, and so forth. The different colored lights can allow activation of different pages to be distinguished from one another. In some embodiments, visual signals are provided using lights, screens, electrochromic film, or combinations thereof.
Page 1 of the book may comprise a plurality of different images associated with different words (e.g., as correlated with locators 11 through 98 in
In some embodiments, the images may be placed in a logical fashion. For example, the word “tree house” is made up of two words: “tree” and “house.” Image 11 on page 1 (
When the user has completed learning the words on page 1 or wishes to proceed to another page (e.g. page 2), the user may flip over page 1. On the next page, the user can press page button 02 in order to activate the second page. Page 2 of the book may comprise another set of different images associated with another different set of words (e.g. 211 through 298) (not shown). The user may proceed to interact with the book by pressing the images on the page 2 and learn additional new words. In the example of
The base may be, for example a back cover of the book. The audio module may comprise a plurality of touch-activated audio recordings. For example, when a user presses the page button 01, all of the audio recordings for the words on page 1 become active. The audio recordings for the words on the remaining pages (2 through 10) do not become active, unless the page buttons for those pages are pressed. The page buttons may be configured to be activated one at a time. The audio recordings are configured to be active one page at a time. When page 1 is active, pressing any image on page 1 will cause an audio recording of the word associated with that image to be emitted, for example via a sound speaker located at the base.
In some embodiments, a system module is provided which comprises the audio module and other modules, such as a visual module, and a computing module. In some embodiments, the system module is configured to receive input (e.g., via the touch sensors, processing instructions from a given module) and output corresponding video and audio signals. In some embodiments, the system module may be configured to be in communication with an external computing device (e.g., computer, smart device). In some embodiments, the system module may be configured to receive updated sounds and/or visual outputs, and/or an updated software, via communication from an external computing device. In some embodiments, the system module comprises a microphone. In some embodiments, the system module is configured to receive audio from a user (e.g., a user speaking which may be captured by a microphone). In some embodiments, the system module is configured to provide feedback, such as provide instructions, output audio and/or video signals, or combinations thereof, in response to received audio input from a user (such as a user speaking).
As described herein, in some embodiments, the audio module comprises a printed circuit board (PCB).
In some embodiments, the energy source comprises one or more batteries. In some embodiments, the energy source comprises a coin battery disposed on the PCB. In some embodiments, the energy source comprises a coin battery disposed separate from the PCB. In some embodiments, the energy source comprises one or more alkaline batteries. In some embodiments, the energy source comprises one or more “AA” batteries, “AAA” batteries, “C” batteries, “D” batteries, and the like. In some embodiments, the batteries are configured to be recharged within or external to the interactive book. In some embodiments, the batteries are recharged via solar power. In some embodiments, the back cover may comprise a solar panel for recharging the batteries. In some embodiments, the batteries are recharged via connection to a power outlet. In some embodiments, the energy source receives power from a power outlet.
In some embodiments an audio output (e.g., speaker, headphone jack) is in communication with the PCB. In some embodiments, the PCB comprises a small speaker. In some embodiments, the headphone jack is located on the base separated from the PCB. In some embodiments, the speaker is located external to the PCB and in communication with the PCB.
In some embodiments, the battery, audio module and speaker are stored in a compartment within the base of the interactive book. In some embodiments, the PCB, audio module and speaker are disposed in different compartments in the audio module compartment 110 that is located within the base (
The base may include one or more sound speakers 108 located at an edge or periphery of the base, for example as shown in
In some embodiments, a headphone jack with volume control may be provided at or near the sound speaker. In some embodiments, the audio module may be configured to wirelessly transmit the audio recordings to a headset or earbuds that are worn by the user.
The base of the book may include a plurality of touch sensors. The plurality of touch sensors may be located directly beneath the grid of locators on every page. In some embodiments, the touch sensors are aligned with one or more images printed on corresponding pages in the book (as described herein). The touch sensors 118 may be connected via circuitry 120 as shown in
In some embodiments, there are at least about 5, 10, 25, 50, 100, 200, or 500 touch sensors 118 located on a touch sensor substrate 102. In some embodiments, each touch sensor 118 is at most about 10 mm, 15 mm, 25 mm, or 50 mm in diameter. In some embodiments, each touch sensor 118 comprises a substantially flat configuration. In some embodiments, one or more touch sensors 118 are slight slightly recessed into the touch sensor substrate 102. In some embodiments, one or more touch sensors 118 slightly protrude from the touch sensor substrate 102. In some embodiments, each touch sensor 102 is in electrical communication with the audio module 104 (e.g., PCB) via electric circuitry 120. With reference to
In some embodiments, instead of providing a touch sensor substrate with a plurality of touch sensors, a capacitive touch grid is provided, as shown in
In some embodiments, the base may include a flexible circuit board, or a ribbon-like flexible printed circuit sheet (such as a flex connector) connecting between different parts of the book.
In some embodiments, the touch sensors may be formed into the pages of paper, instead of being located in the base of the book. For example, the touch sensors may be provided on the grid of locators on every page of the book. As described herein, in some embodiments, the touch sensors provided on each page of the book may be a pressure sensitive button, which is activated when a user presses on the image on the page and transmits a touch force to the underlying pressure sensitive button, whereas in other embodiments, the touch sensor may be incorporated into the page as a conductive ink button, which can be activated by merely touching the button (as opposed to pressing on the button). The touch sensors may be electrically connected to the audio module 104 in the base of the book. Such electrical connections may include traces (circuitry) formed using conductive ink that extend across the page, into the spine of the book, and subsequently extending to the audio module at the base of the book.
In some embodiments, the touch sensors, conductive traces, and conductive pads may be printed on sheets of paper, or in the base of the book, using conductive ink. Additionally or optionally, conductive adhesives, conductive paints, conductive foils and the like may be used. These inks may be applied via gravure, screen printing, flexographic, inkjet and other technologies and are well suited for high volume production. Alternatively, one or more of the touch sensors, conductive traces and/or conductive pads may be constructed by any other material that is thin and conductive, such as conductive adhesives, paints or foils.
In some embodiments, other portions of the interactive book may include touch sensitivity. For example, in some embodiments, both pages of each spread in the book, the casing of the book, the spine of the book, or any combination thereof may include touch sensitivity. In some embodiments, such touch sensitivity in other portions of the book may activate audio sounds and/or visual signals.
In some embodiments, the sounds and voices corresponding to the plurality of images in the interactive book are stored in the memory chip(s) (or other built-in storage component) on the audio module (e.g., PCB). In some embodiments, sound files can be transferred to said storage in the audio module. In some embodiments, the stored sounds are processed through audio mastering, which comprises auditioning and perfecting the sound emitted from the interactive book. In some embodiments, the sound is auditioned through the full audio signal path (e.g., audio module, speaker, and/or headphone connected to the headphone jack) so as to provide complete control of the sound emanating from the speakers on the interactive book. Thus, the sound coming from the speakers to a user's ears is exactly as it is heard in a recording studio.
In some embodiments, audio mastering the sound(s) recorded on the audio module comprises first establishing the ideal sound using audio equalization, compression, limiting and other audio-based manipulations (collectively “audio processing”) for the subject matter on a studio equipment. In some embodiments, this ideal sound is used for the digital iterations of the product and as a reference. In some embodiments, the audio processing is then adjusted using either the digital audio interface directly on the audio module, or an analog connection directly to the audio module's loudspeaker, so as to overcome and utilize the physical properties of the platform (e.g., base of the book), and to achieve a likeness to the studio sound. In some embodiments, automatic tonal-matching algorithms and manual adjustments are used to achieve this likeness.
The interactive book/media described herein may be scalable, ranging from small mini-books for children to large format interactive paper-based posters (for both children and adults). The book may be capable of emitting sounds having different vocal/acoustic/auditory characteristics, emotions conveyed in voice recording, tonal quality, expressiveness, accents, words spoken in one or more different languages, for example as described with reference to the talking picture dictionary. In some embodiments, the interactive book may be capable of sensing feedback depending on how often and where a user (e.g. a child) touches the page/paper. The software in the book can customize the next audio signal (sounds) for the child based on feedback received. In some embodiments, the interactive book can provide guidance to the child on which portion of the page to touch, determine/gauge the child's interest level, adjust the level of interactivity depending on the child's interest level, monitor an amount of time that the child spends listening/learning/reading the book, and generate feedback to parents or guardian about the child's learning progress.
On the bottom of the page is a series of buttons. A first button can be used to reset and re-enable touch mode. In some embodiments, a second button may be the games button, and it can be used to activate a seek and find game.
For the programming of the sounds, variable assignments can be used throughout the book, for example as shown in
Each of the types of variables will be described in further detail elsewhere herein.
To use page 1 as an example, in some embodiments, when pressing the “1” or “01” button on the top of the page, a page introduction sound effect may be played based on a instructions sent to the audio module. For example, the instructions may comprise: “Play INTR0100 v1.wav”. In some embodiments, after the page introduction sound effect is emitted, a voice sound is then emitted. In some embodiments, one or more voice sounds is associated with a given page number. In some embodiments, a random voice sound of the one or more voice sounds is emitted. For example, for page 01, after the page introduction sound is emitted, the book will then randomly play one of the voice sounds as provided in
For the programming of the sounds associated with an image, variable assignments can be used throughout the book, for example as shown in the table below for the relevant variables:
An exemplary description and example of the programming execution for touching/pressing an image on a given page on the book, in some embodiments, is as provided in the table below:
Play the image sound effect td031100 KitchenCabinet-M.way (if available), followed by randomly play one of the voice sounds as provided in
Referring to
Referring to
In some embodiments, images or illustrations on the poster may be painted using electric paint. The electric paint can be used to paint and screen print circuits and sensors, or used as a conductive adhesive on different types of materials and surfaces including paper, plastic, textiles and conventional electronics. The electric paint can be insulated using standard acrylic or water-based paints for permanent applications or to create multi-layer circuitry. The electric paint can be used with touch boards to create large scale touch sensors suitable for posters. The electric paint may be non-toxic and water soluble, and can be used to paint or print sensors on a wide range of surfaces. These sensors can be used to build sensors into the environment or to create interactive installations. For long term durability, the electric paint can be sealed, coated or covered with a water-resistant layer such as acrylic or glass.
While preferred embodiments of the present invention have been shown and described herein, it will be obvious to those skilled in the art that such embodiments are provided by way of example only. Numerous variations, changes, and substitutions will now occur to those skilled in the art without departing from the invention. It should be understood that various alternatives to the embodiments of the invention described herein may be employed in practicing the invention. It is intended that the following claims define the scope of the invention and that methods and structures within the scope of these claims and their equivalents be covered thereby.
This application is a continuation application of International Application No. PCT/US2020/054622, filed Oct. 7, 2020, which claims the benefit of U.S. Provisional Application No. 62/912,562, filed Oct. 8, 2019, which is incorporated by reference herein in its entirety.
Number | Date | Country | |
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62912562 | Oct 2019 | US |
Number | Date | Country | |
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Parent | PCT/US2020/054622 | Oct 2020 | US |
Child | 17715772 | US |