A DEVICE FOR AUTOMATIC CHARGING IN EAR BUDS

Abstract

ABSTRACT A DEVICE FOR AUTOMATIC CHARGING IN EAR BUDS The present invention discloses a device for the earphones utilize wireless power transfer technology, allowing them to charge from a mobile phone via electromagnetic induction and make no charging cables or charging time in the future. The Bluetooth connectivity ensures seamless communication and efficient power transfer. Designed for audiophiles & we are deliberately giving it with no charging the bugs or earphones in the life time of the buds, they deliver exceptional sound quality with advanced audio drivers and noise-cancellation technology, providing a rich, immersive listening experience. The ergonomic design features lightweight construction and soft silicone ear tips for a comfortable and even secure for humans and it does not affect them, secure fit during extended use. Sleek and modern, these earphones offer a stylish and practical solution for everyday audio needs, combining convenience, superior sound quality and comfort. Fig 1

Specification

Description:FORM 2

THE PATENTS ACT, 1970
(39 of 1970)
&
THE PATENTS RULES, 2003

COMPLETE SPECIFICATION
(See Section 10; rule 13)


TITLE OF THE INVENTION
A DEVICE FOR AUTOMATIC CHARGING IN EAR BUDS


APPLICANT
K.RAMAKRISHNAN COLLEGE OF ENGINEERING
NH-45, Samayapuram,
Trichy, Tamilnadu, India- 621112


The following specification particularly describes the invention and the manner in which it is to be performed.
A DEVICE FOR AUTOMATIC CHARGING IN EAR BUDS
TECHNICAL FIELD
The present invention relates to the field of Audio Technology and Consumer Electronics. More specifically, the present invention related to earphones which doesn't need to get charged in its life of the buds.
BACKGROUND
Wireless non-rechargeable earbuds operate using a combination of radio frequency technology and specific design features that differentiate them from their rechargeable counterparts. These earbuds typically utilize infrared or radio frequency (RF) signals to transmit audio from a source device, such as a smartphone or computer, to the earbuds withou the need for Charging technology and It can charge automatically. It also takes the electric field from the surrounding and charge by itself to make it sustain in the digital world.
These earbuds connect to audio sources through various means, such as a dedicated transmitter that plugs into the audio output jack of the device. The transmitter converts the audio signal into a wireless format that can be picked up by the earbuds. A wireless power transfer system typically consists of the following components:
Transmitter device: Connected to a power source, it converts power to a time-varying electromagnetic field.
Receiver device: Receives the power and converts it back to DC or AC electric current for an electrical load. Using full Magnet wire (gauge copper wire): Used in the construction of the circuit. The cconversion is crucial for powering electronic devices, especially those that rely on battery storage, such as smartphones, laptops, and true wireless stereo (TWS) earbuds.
The Conversion Process Rectification: The first step in converting AC to DC involves rectification, where the AC voltage is transformed into a pulsating DC voltage. This is achieved using diodes arranged in a rectifier circuit. The diodes allow current to flow in only one direction, effectively converting the sinusoidal AC waveform into a series of positive voltage peaks.
Smoothing: After rectification, the output voltage still contains fluctuations, known as ripples. To smooth out these ripples and produce a more stable DC voltage, a filter (usually a capacitor) is employed. The capacitor charges during the peaks of the rectified voltage and discharges during the troughs, helping to maintain a steady output voltage.
Voltage Regulation: The final step is voltage regulation, which ensures that the output voltage remains within the desired range, regardless of variations in input voltage or load conditions. Voltage regulators can be used to maintain a consistent DC voltage suitable for charging batteries and powering electronic circuits.
OBJECT OF THE INVENTION
The idea of integrating True Wireless Stereo (TWS) earbuds with automatic rechargeable functionality through Wireless Power Transfer (WPT) technology presents an innovative solution to enhance user convenience and device longevity. This concept involves utilizing WPT techniques to enable the earbuds to recharge automatically when placed within proximity to a designated charging area or case, eliminating the need for traditional charging cables and connectors.
Ultrasound is generally regarded as safe for humans, as it does not produce ionizing radiation like X-rays. However, at high decibels, it can cause direct damage to human ears, and exposure to extremely high levels may even cause death1. While there are theoretical risks to tissues, there are no known examples of tissue damage from conventional ultrasound imaging2. Prolonged exposure to ultrasound waves has been studied in animals, but there is no evidence that these effects occur in human.
SUMMARY
The earbud system is equipped with advanced features that make it both efficient and user-friendly. Each earbud has receiver coils designed to capture energy from a nearby wireless power transmitter. This energy is then converted into direct current (DC) using a full-wave rectifier with Wireless Power Transfer (WPT) technology, allowing it to power the audio components seamlessly.
The system includes a triangular charging case, which houses a transmitter coil that wirelessly charges the earbuds when they are placed in the case. This charging case is also self-charging through the same WPT technology. The control unit, equipped with integrated circuits and Battery Protection Circuit Modules (PCM), manages wireless charging, maximizing power efficiency, preventing overcharge, and safeguarding against short circuits. Additionally, environmental sensors within each earbud and the charging case monitor ambient conditions, helping to improve charging efficiency based on the surrounding environment. A digital display on the case shows crucial information like charge levels, time, and navigation details for easy user access.
For comfort and stability, the earbuds and case feature a triangular design with angled surfaces, providing a secure fit for extended wear. The case also includes a display screen with real-time status indicators, including battery level, time, and Bluetooth connectivity status. The system's receiver coils activate charging automatically when the earbuds are within range of the transmitter, optimizing the process without needing manual activation. Each earbud can also absorb energy from ambient electric fields, adding to the power received from the transmitter coil and extending battery life.
These earbuds are designed with high-quality audio drivers and active noise cancellation, powered by the efficient energy conversion of the receiver coils, delivering a rich and immersive listening experience. By relying on wireless power transfer, the earbuds reduce dependency on disposable batteries and wired charging, which supports sustainability and minimizes electronic waste. Made from durable, lightweight polycarbonate and ABS, the casing ensures lasting comfort and durability.
The control unit also enables seamless Bluetooth connectivity with mobile devices and offers touch controls on each earbud for playback, call management, and voice assistant activation. The earbuds are equipped with a battery management system that incorporates overcharge protection and temperature regulation, ensuring safe and efficient charging in various environmental conditions.
BRIEF DESCRIPTION OF THE DRAWINGS
Wireless power transfer (WPT) is an innovation that permits electrical energy to be communicated without the requirement for actual wires. This can be unimaginably helpful in circumstances where associating wires are badly designed, perilous, or unthinkable.
There are two principal sorts of WPT:
Close field (non-radiative) strategies: These include moving control over brief distances utilizing attractive fields (inductive coupling) or electric fields (capacitive coupling). Normal applications incorporate charging cell phones, oscillating brushes, and, surprisingly, electric vehicles1.
Far-field (radiative) strategies: These include moving control over longer distances utilizing light emissions radiation, like microwaves or lasers. Working Principle
In wireless Power Transmission The charging case or a dedicated charging pad would utilize WPT technology, such as electromagnetic induction or resonant coupling, to transfer power wirelessly to the TWS earbuds. The charging case would contain a transmitter coil that generates an electromagnetic field when powered on.
Receiving Antenna Each earbud would be equipped with a receiving coil and a rectifier circuit, designed to convert the received AC power from the electromagnetic field into DC power suitable for charging the internal battery. Recent advancements in rectifier technology, such as efficient rectifiers for WPT systems, can enhance the conversion efficiency, ensuring effective power transfer.
Automatic Charging the earbuds would automatically initiate the charging process when they are placed in the charging case or within the effective range of the charging pad. This automatic feature eliminates the hassle of manually connecting the earbuds to a charging cable, making the user experience seamless.
Battery Management System are an integrated battery management system within the earbuds would monitor the charging status, ensuring safe and efficient charging. This system could also include features like overcharge protection and temperature management to enhance battery life.
The power Sources Unlike rechargeable models, non-rechargeable earbuds typically use disposable batteries or may come with a built-in battery that is not designed for recharging. This means users must replace the batteries once they are depleted, which can be less convenient but eliminates the need for charging.
These designs are may be Many non-rechargeable wireless earbuds are designed for comfort and portability. They often feature lightweight materials and ergonomic designs to ensure a secure fit in the ear, making them suitable for extended use during activities like exercise or commuting. For the outer casing of the earbuds and the charging case, materials such as polycarbonate and ABS (acrylonitrile butadiene styrene) are popular choices due to their lightweight and impact-resistant properties. These materials provide a robust structure while keeping the weight low, which is essential for comfort during prolonged use. Additionally, metal components, such as aluminum, can be used for a premium feel and aesthetic appeal, as well as to enhance durability. The combination of these materials not only ensures that the earbuds are comfortable and functional but also contributes to their overall aesthetic and tactile experience, making them appealing to consumers.
True Wireless Stereo (TWS) earbuds have evolved significantly in recent years, with manufacturers exploring various design possibilities to differentiate their products in the competitive market. One such innovative design is the triangular shape for both the earbuds and their charging cases. This unique approach not only enhances the aesthetic appeal of the product but also offers several practical advantages that can help TWS earbuds seamlessly integrate into users' daily lives and match up to the ecosystems of many popular brands.
The triangular shape of TWS earbuds is not just a bold design choice; it also offers several ergonomic benefits that improve user comfort and stability. The tapered edges of the triangular design fit snugly into the contours of the ear, providing a secure and stable fit even during physical activities or while moving around. This shape also minimizes the risk of the earbuds falling out or shifting position, ensuring a comfortable and uninterrupted listening experience throughout the day.Moreover, the triangular design allows for a more compact and streamlined earbud profile, reducing the overall size and weight of the device. This makes the earbuds less obtrusive and more discreet when worn, appealing to users who prefer a subtle and sophisticated look. The unique shape also adds a touch of modern elegance to the earbuds, making them a stylish accessory that complements various fashion choices and personal styles.
The triangular design extends to the charging cases of TWS earbuds, offering several advantages in terms of portability and functionality. The compact and angular shape of the charging case allows it to fit easily into pockets, purses, or even the palm of your hand, making it convenient to carry around throughout the day. This design also enables the charging case to be easily slipped into tight spaces, such as between couch cushions or in the side pockets of bags, reducing the risk of misplacing or losing the case. The triangular charging case also provides a stable platform for the earbuds to rest on when not in use. The angled surfaces of the case ensure that the earbuds are securely held in place, preventing them from rolling off or getting damaged. This stability is particularly important when the charging case is placed on uneven surfaces or when the user is on the move, as it helps maintain the earbuds' position and protects them from potential impacts or scratches.
Moreover, the triangular design can be further enhanced with subtle branding elements, such as logos, color schemes, or unique patterns, allowing brands to differentiate their TWS earbuds from competitors while still maintaining a consistent aesthetic across their product range. This level of customization and brand integration not only appeals to loyal customers but also attracts new users who are drawn to the cohesive and visually appealing ecosystem.
The triangular design of TWS earbuds and their charging cases represents a bold and innovative approach to product design in the highly competitive audio accessories market. By combining ergonomic benefits, stylish aesthetics, and versatile functionality, this unique shape offers a compelling alternative to traditional earbud designs. Furthermore, the triangular motif can be seamlessly integrated into various brand ecosystems, creating a visually consistent and appealing user experience across multiple devices. As the TWS market continues to evolve, the triangular design is poised to become an increasingly popular choice for manufacturers seeking to differentiate their products and attract discerning consumers who value both form and function.
While non-rechargeable earbuds may not offer the same advanced audio codecs as Bluetooth models, they can still deliver satisfactory sound quality for casual listening. However, the audio quality may vary significantly between different brands and models. The audio quality of true wireless stereo (TWS) earbuds with automatic rechargeable functionality using wireless power transfer (WPT) technology can be enhanced through several key factors:
The WPT technology used for charging the earbuds must be highly efficient to minimize power losses during the charging process. This ensures that the earbuds receive sufficient power to drive the audio components without compromising sound quality. Advanced rectifier circuits and impedance matching techniques can optimize the RF-to-DC conversion efficiency, as discussed in the search results.
The earbuds should be equipped with premium audio components, such as dynamic or balanced armature drivers, to deliver clear and detailed sound reproduction. The drivers should be capable of handling a wide frequency range without distortion, ensuring an immersive listening experience.
Active noise cancellation (ANC) technology can significantly enhance audio quality by reducing ambient noise, allowing users to enjoy their music without distractions. The search results mention the use of multiple microphones and advanced algorithms for effective noise cancellation.
The wireless transmission between the earbuds and the audio source should have low latency to ensure synchronization between audio and video content. The use of advanced Bluetooth codecs, such as aptX or LDAC, can provide high-quality wireless audio transmission with minimal latency.
The earbuds should have an ergonomic design that provides a secure and comfortable fit, ensuring a proper seal in the ear canal. This improves passive noise isolation and enhances the bass response, contributing to an overall better audio experience.By combining efficient WPT technology with high-quality audio components, effective noise cancellation, low-latency wireless transmission, and ergonomic design, TWS earbuds can deliver an exceptional audio quality that rivals traditional wired earphones while offering the convenience of automatic wireless charging.
These earbuds cater to users who prefer a straightforward, hassle-free listening experience without the need for frequent recharging. They are often marketed as budget-friendly alternatives to more advanced wireless options.
Marketing Value of TWS with Automatic Rechargeable Functionality Using WPT
For the TWS earbuds equipped with automatic rechargeable functionality using Wireless Power Transfer (WPT) techniques, the marketing value can be significantly enhanced due to the following factors:
Innovative Technology: The integration of WPT allows for a seamless charging experience, eliminating the need for cables and manual charging. This innovation positions the product as a cutting-edge solution in the competitive TWS market.
User Convenience: Automatic recharging means users can simply place their earbuds in proximity to a charging pad or case without worrying about battery life. This convenience is a strong selling point, especially for tech-savvy consumers.
Enhanced Durability: By removing physical connectors, the risk of wear and tear is minimized, leading to a longer lifespan for the earbuds. This durability can be highlighted in marketing campaigns to attract consumers looking for long-lasting products.
Eco-Friendly Appeal: With a focus on sustainability, promoting the use of WPT technology can resonate with environmentally-conscious consumers who prefer products that reduce electronic waste associated with traditional charging methods.
Market Differentiation: The unique feature of automatic recharging using WPT can differentiate these TWS earbuds from competitors, allowing for targeted marketing strategies that emphasize innovation and convenience.
Potential for Cross-Selling: The WPT technology can be marketed alongside other wireless devices, creating opportunities for bundled sales or ecosystem promotions, enhancing overall market value.
DETAILED DESCRIPTION
These wireless earbuds bring together cutting-edge design, advanced power management, and high-quality sound in one cohesive package. They use Wireless Power Transfer (WPT) technology for a truly seamless charging experience and are crafted with user convenience, comfort, and sustainability in mind, then it is very compactable.
Each earbud has tiny built-in receiver coils that capture energy from a wireless power transmitter nearby, meaning no plugging in or aligning charging ports. Inside, a circuit converts this captured energy into direct current (DC), which powers the earbuds' audio and electronics. This WPT setup makes charging incredibly easy-just put the earbuds close to the charging source, and they automatically start receiving power.
The charging case, designed with a modern triangular shape, serves a dual purpose: it holds and charges the earbuds securely, and it also charges itself wirelessly. The transmitter coil inside the case sends power to the earbuds as soon as they're placed inside. The case itself can recharge wirelessly when near a compatible charging source, adding flexibility for users on the go. This eliminates the need for wires and keeps everything streamlined.A smart control unit in the case manages charging, balancing efficiency and safety. The control unit prevents overcharging, short circuits, and overheating by using integrated protection circuitry. It monitors how much power the earbuds and case need, protecting the batteries and maximizing their lifespan. Sensors also detect environmental conditions like temperature and humidity, making sure charging is adjusted for the best efficiency and safety.
The charging case has a small, sleek digital display that keeps users informed. It shows the battery level of both the earbuds and the case, along with the time, Bluetooth connectivity status, and any other essential info. This display makes it easy to check charge levels and other details at a glance.
A key feature of the charging case is its smart control unit, which manages power distribution to ensure efficiency and safety. This control unit includes integrated protection circuitry, such as Battery Protection Circuit Modules (PCM) and temperature-regulating components, that prevent overcharging, overheating, and short circuits. By continuously monitoring the power needs of the earbuds and case, the control unit maximizes battery lifespan and optimizes charging efficiency. Environmental sensors within the earbuds and case assess conditions like temperature and humidity, dynamically adjusting the charging rate based on these factors to ensure safety. This intelligent system not only protects the battery but also gives users peace of mind during charging.
The triangular shape extends to the earbuds, which are designed to fit snugly and comfortably in the ear. This shape adds stability, making sure the earbuds stay in place during movement. The angled surfaces fit the ear's natural contours, letting users wear them for extended periods without discomfort. There's no need to turn on charging manually. The receiver coils in each earbud start charging automatically as soon as they detect the transmitter coil's field. This auto-activation adds convenience, making charging feel seamless and hands-free.
In addition to receiving power from the case, the earbuds can absorb energy from nearby electric fields, which can help extend battery life. This feature reduces the need for frequent charging, providing a little extra power boost from the environment itself. The earbuds are built with top-quality audio drivers that deliver crisp, rich sound. Active noise cancellation (ANC) technology, powered by the efficient energy from the WPT system, helps eliminate background noise for a better listening experience. These features combine for clear, high-fidelity audio that immerses the user.

Using WPT technology minimizes the need for traditional batteries and wired chargers, which reduces electronic waste. This design supports a more sustainable approach to tech, giving users a premium audio experience that's also environmentally conscious.
The wireless earbud system promotes sustainability by reducing the dependency on traditional batteries and wired chargers, which often contribute to electronic waste. By embracing WPT technology, the earbuds eliminate the need for disposable batteries and minimize the need for cables, reducing both user inconvenience and environmental impact. The device's long-lasting, rechargeable battery and wireless capabilities encourage sustainable usage, aligning with modern environmental standards and allowing users to make an eco-friendly choice without sacrificing performance.
A convenient aspect of the earbud system is its automatic charging activation. The receiver coils in each earbud start charging automatically when the earbuds detect the transmitter's electromagnetic field, eliminating the need for manual activation. This auto-start feature allows users to simply place the earbuds near the transmitter or inside the case to begin charging, creating a hands-free experience that feels effortless. Additionally, the earbuds have a unique feature where they can absorb energy from ambient electric fields in the surrounding environment. This functionality supplements the primary charging mechanism, helping extend battery life and reducing the frequency of recharges.
The earbuds and case are made with lightweight, durable materials like polycarbonate and ABS, providing long-lasting comfort and resilience. These materials make the earbuds light enough for all-day wear while keeping them sturdy enough to withstand regular use.
With Bluetooth, the earbuds connect seamlessly to mobile devices for calls, music, and voice assistants. Touch controls on each earbud let users manage playback, handle calls, and activate voice assistants easily, making it simple to stay connected and in control.
The battery management system includes overcharge protection and temperature regulation, adapting to various conditions. This system ensures that charging is always safe and efficient, protecting both the earbuds and the user for worry-free power management.
Equipped with Bluetooth connectivity, these earbuds seamlessly connect to a range of devices, such as smartphones, tablets, and computers. This easy connectivity allows users to manage music playback, answer calls, and activate voice assistants directly from the earbuds. Touch-sensitive controls on each earbud provide intuitive navigation, enabling users to perform common actions like adjusting volume, skipping tracks, and activating ANC without needing to handle their device. These touch controls make it easy for users to stay connected and manage their audio experience in a hands-free manner, enhancing the product's convenience.
The earbuds and case are crafted from durable, lightweight materials such as polycarbonate and ABS, which provide resilience against daily wear and tear. These materials contribute to the comfort of the earbuds, making them light enough for all-day wear while ensuring that the product remains durable over time. The polycarbonate and ABS combination achieves a balance between durability and comfort, withstanding regular use while maintaining a sleek and modern design. This attention to material quality allows the earbuds to endure prolonged use and frequent handling without compromising their structural integrity.
The earbuds' battery management system includes robust safety features, such as overcharge protection and temperature regulation. This system carefully monitors the charging process, adapting to environmental conditions to ensure safe and efficient power delivery. Overcharge protection prevents excessive energy flow once the battery is fully charged, preserving battery health, while temperature sensors ensure the device remains safe even in varying environmental conditions. This sophisticated management system provides a reliable and worry-free power solution, protecting both the earbuds and the user for a safer charging experience.

The drawings illustrate the innovative design and functional components of the remote non-battery-powered headphones and triangular True Wireless Stereo (TWS) earbuds, highlighting their unique features and construction materials.
Digital Screen (1): Depicted in the diagrams, the digital screen shows the interface for users to interact with the device, displaying vital information such as battery status, connection indicators, and audio settings.
Polycarbonate Material (2): The drawings emphasize the use of polycarbonate for the outer casing of the earbuds and charging case, showcasing its lightweight and impact-resistant properties that enhance durability and portability.
Metal Components (3): Highlighted in the diagrams are the metal components utilized for contact points and connectors, which ensure reliable connectivity and enhance the overall aesthetic appeal of the device.
Charging Contacts (4): The drawings detail the positioning of the charging copper contacts within the case, illustrating how the earbuds align with these contacts for seamless charging.
Foam or Soft Padding (5): Represented in the diagrams is the soft foam padding inside the earbuds, which enhances user comfort during prolonged use and provides a secure fit.
Speaker Drivers (6): The drawings include representations of the high-quality speaker drivers used in the earbuds, showcasing their design and positioning for optimal sound quality.
Touch Response Mechanism (7): The illustrations depict the touch response areas on the earbuds, emphasizing the user-friendly interface for controlling playback and managing calls with ease.
ABS Material (8): The drawings highlight the use of ABS (acrylonitrile butadiene styrene) in the construction of the charging case, underscoring its lightweight and robust characteristics that contribute to the overall design integrity.
Overall, the drawings provide a comprehensive overview of the design elements and functional components of the remote non-battery-powered headphones and triangular TWS earbuds, illustrating how each part works together to deliver an exceptional user experience.
Lastly, these earbuds incorporate multi-device pairing, allowing users to switch effortlessly between two connected devices, such as a smartphone and laptop. This functionality is particularly helpful for users who regularly switch between calls, music, and video across different devices, providing seamless connectivity and enhancing productivity without the hassle of reconnecting manually each time.
, Claims:CLAIMS
We Claim,
1. A set of receiver coils embedded within each earbud, configured to capture electromagnetic energy from a wireless power transmitter located in proximity;
An internal circuit designed to convert the captured electromagnetic energy into direct current (DC) to power audio components within the earbud it's a mechanism of full wave rectifier with WPT technology(Wireless Power Transfer Technology);
A triangular charging case housing a transmitter coil, enabling wireless power transfer to the earbuds when placed within the case and even case has the same WPT technology and it gets charge automatically;
A control unit managing wireless charging operations, optimizing power efficiency, and preventing overcharge through integrated circuitry and even short circuit though IC's and PCM(Battery Protection Circuit Modules);
An environmental sensor array within each earbud and charging case for monitoring ambient conditions that impact charging efficiency; and,
A digital display on the charging case, configured to show the charge level, time, and navigational indicators for user convenience.
2.The earbud system as claimed in claim 1, wherein the triangular design of the earbuds and charging case enhances fit and comfort for extended wear, with angled surfaces that provide a secure fit within the ear and stability within the case.
3. The earbud system as claimed in claim 1, further comprising a display screen integrated into the charging case that provides real-time status indicators, including battery levels, time, and Bluetooth connectivity status.
4. The earbud system as claimed in claim 1, wherein the receiver coils automatically activate charging when the earbuds are within the range of the transmitter coil, optimizing the charging process without the need for manual activation.
5. The earbud system as claimed in claim 1, wherein each earbud is equipped to absorb energy from ambient electric fields, supplementing the power received from the transmitter coil and extending battery life.
6. The earbud system as claimed in claim 1, featuring high-quality audio drivers and active noise cancellation, powered by the efficient energy conversion from the receiver coils to ensure a high-fidelity listening experience
7. The earbud system as claimed in claim 1, wherein the use of wireless power transfer reduces dependency on disposable batteries and wired charging solutions, minimizing electronic waste and promoting sustainable usage.
8. The earbud system as claimed in claim 1, comprising a casing made from lightweight polycarbonate and ABS materials, ensuring durability and comfort for prolonged usage without compromising design integrity.
9. The earbud system as claimed in claim 1, wherein the control unit enables seamless connectivity with mobile devices via Bluetooth, with touch controls on each earbud for playback, call management, and voice assistant activation.

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