Exchanging identifiers between wireless communication to determine further information to be exchanged or further services to be provided

Patent No. US8090359 (titled "Exchanging identifiers between wireless communication to determine further information to be exchanged or further services to be provided") on Feb 3, 2009. The application was issued on Jan 3, 2012.

What is this patent about?

’359 is related to the field of proximity-based wireless communications and mobile social networking. It specifically addresses the limitations of GPS-dependent systems, which often fail indoors, and pure peer-to-peer networks that struggle with security, identity persistence, and complex transaction management. The technology provides a framework for devices to discover one another locally while offloading the substantive data exchange and logic to a centralized infrastructure.

The underlying idea behind ’359 is to decouple the proximity detection mechanism from the application data flow by using a hybrid radio approach. Instead of establishing a direct data link between two nearby devices, a first device uses a short-range radio—like Bluetooth or Wi-Fi—simply to harvest a passive identifier from a second device. This identifier is then sent over a wide-area network (WWAN) to a central server, which acts as a trusted broker to validate identities, enforce privacy policies, and facilitate secure interactions that can persist even after the devices move out of physical range.

The claims of ’359 focus on a server-mediated exchange where a central server receives a detected identifier from a first wireless device and uses it to identify a proximal entity or object. The server then triggers a specific action or service delivery based on that identifier combined with sophisticated contextual logic. This logic includes evaluating feedback ratings of the entities involved, applying loyalty program rewards, or managing the state of a multi-step electronic commerce transaction, such as a secure purchase between a customer and a vendor.

In practice, the system functions as a secure bridge for real-world interactions. For example, in a retail or street-vending scenario, the server can facilitate a three-way handshake for payments. The server sends visual confirmation, such as a photograph of the merchant or customer, to the opposing device to prevent fraud. Because the server manages the identifiers, it can rotate them periodically to ensure user anonymity and prevent unauthorized tracking, a feat that is difficult to achieve in standard peer-to-peer hardware configurations.

This approach differentiates itself from prior art by eliminating the need for GPS and avoiding the security pitfalls of direct peer-to-peer data transfers. By centralizing the policy enforcement, the invention allows for granular privacy controls, where users can define exactly who sees their presence based on social proximity or reputation scores. Furthermore, it enables low-power operation by using cellular network timing to synchronize the brief windows when devices must scan for or broadcast their local identifiers.

How does this patent fit in bigger picture?

Technical Landscape

In the late 2000s when ’359 was filed, mobile social networking and electronic commerce were typically implemented using wide area wireless networks (WWAN) to access centralized web interfaces or by utilizing GPS receivers for geographic positioning. At a time when location-aware services commonly relied on satellite-based trilateration, systems often failed in indoor environments where signal attenuation made precise proximity detection non-trivial. Furthermore, while short-range wireless protocols like Bluetooth and Wi-Fi were standard in mobile hardware, they were primarily utilized for peripheral connectivity or direct peer-to-peer data exchange, which lacked the centralized brokering necessary for secure identity verification and fraud-resistant transaction management.

Prosecution Position

The disclosed invention represents a technical advancement through the architectural integration of a dual-radio mobile device with a centralized brokering server to facilitate proximity-based interactions. By utilizing a short-range radio solely for the detection of a broadcasted identifier and a long-range radio for the subsequent exchange of application data via a remote server, the system overcomes the reliability constraints of GPS in indoor settings and the security vulnerabilities of pure peer-to-peer networks. This architectural shift enables a secure third-party verification layer where the server manages identity disclosure policies, coordinates the periodic rotation of hardware identifiers to preserve anonymity, and synchronizes radio power cycles across multiple devices to optimize battery consumption. The resulting capability allows for cross-validated electronic transactions and social interactions that are physically localized yet centrally secured.

Claims

This patent contains a total of 56 claims, with claims 1 and 14 serving as the independent claims. The independent claims focus on a central server system and method for exchanging information between wireless devices, specifically where a server receives a second device's identifier from a first wireless device via short-range communication and then delivers services or information based on proximity data, feedback ratings, loyalty program rewards, or electronic commerce transaction steps. The dependent claims generally serve to specify the types of information delivered, such as advertisements or e-coupons, detail the facilitation of commercial transactions and identity verification, describe time synchronization and network protocols, and define specific server actions based on user history or device proximity.

Key Claim Terms New

Definitions of key terms used in the patent claims.

Term (Source)Support for SpecificationInterpretation
Feedback ratings
(Claim 1, Claim 14)
Another important policy required for such services would be the determination of any past negative feed back ratings by other past peers for behavior for the particular user to which the information is to be provided. An individual with significant poor ratings having detected a peer, may be denied access to personal information or even notification of arrival of the detected peer based on the server policy setting. The server acts as a third trusted party to help facilitate the electronic transaction between the individuals.Data stored on a central server representing past behavior or reputation of a user, used by the server's policy engine to determine whether to disclose information or allow interaction between two proximate entities.
Loyalty program
(Claim 1, Claim 14)
Where this information optionally includes advertising information or information related to 'e-coupons' for special offers for products or services. The content of the e-coupons might be customized based on the identity of the requesting device or account holder. Where the content is further customized based on other information known by the server related to the user's account, such as the user's past purchasing practices.A server-managed system that tracks participation and provides rewards or customized content (such as e-coupons) to a user based on their identity and proximity to a specific broadcast device.
Multiple step process for an ongoing electronic commerce transaction
(Claim 1, Claim 14)
The server may facilitate a process requiring each party to perform a step by step confirmation during the transaction including the stages of: the request for purchase, the payment, the receipt of goods and services, and the providing of payment receipt. The application running on each device can optionally perform point of sale transitions coordinated via the central server, over the WWAN, utilizing user input on each device as confirmation of successive steps. Further, at least one of the confirmation steps additionally involves displaying an identifying picture related to one of the devices, on the other device.A server-brokered sequence of interactions between two proximate devices to facilitate a secure sale, including stages such as purchase request, identity verification, payment, and receipt confirmation.
Second device identifier information
(Claim 1, Claim 14)
The wireless identifier is associated with a specific account on a server connected to the internet. By the nature of the identifier, it must be static or peers would not be able to directly determine the identity of a friend over time. The system may coordinate the change of the identifiers from time to time such that the disclosure of an identifier by one device to another does not compromise the identity of the device.A technical code or data string transmitted by a second device via short-range wireless protocols (e.g., Bluetooth, Wi-Fi) that is associated with a specific account, entity, or object on a central server.
Short range communication
(Claim 1, Claim 14)
The first wireless protocol is a local, or personal area network wireless protocol such as 802.11, Bluetooth, UWB or other local connectivity protocol. Using a peer to peer detection process to locate nearby devices allows for the operation of proximity detection indoors. This differs from the approaches employed by prior art location aware mobile social networking techniques in that no GPS is needed to determine when one device is in proximity to another.A wireless protocol for peer-to-peer or local area connectivity, such as IEEE 802.11 (Wi-Fi), Bluetooth (IEEE 802.15.1), or Ultra-Wide-Band (UWB), used to detect proximity without relying on GPS.

Litigation Cases New

US Latest litigation cases involving this patent.

Case NumberFiling DateTitle
1:25-cv-01579Dec 31, 2025Helix Microinnovations LLC v. Bridgelux, Inc.
1:25-cv-01207Sep 29, 2025Boehringer Ingelheim Pharmaceuticals Inc. v. Ipca Laboratories Ltd.
2:25-cv-00763Aug 4, 2025Secure Communication Technologies, Llc V. Apple Inc.

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US8090359

Application Number
US12364828A
Filing Date
Feb 3, 2009
Publication Date
Jan 3, 2012
External Links
Slate, USPTO , Google Patents