Obviousness

Here's an analysis of the obviousness of US patent 11176538 under 35 U.S.C. § 103, identifying combinations of prior art references (as described within the patent itself) that would render the claims obvious, along with the motivation for combining them. The analysis assumes the perspective of a person having ordinary skill in the art (POSA) at the patent's priority date (March 15, 2013).

The patent's background section details the state of prior art in payment cards, categorizing them into:

• A: Conventional magnetic stripe cards: Standard plastic cards with a magnetic strip, widely compatible with existing infrastructure.
• B: Smart integrated circuit (IC) chip cards: Cards with a built-in microprocessor and cryptographic capabilities, requiring contact with a reader, and often including a magnetic strip for backward compatibility.
• C: Radio frequency identification (RFID) cards: Cards with a low-power RF antenna for wireless interaction with readers.

The patent explicitly states that a concern with existing smart IC chip cards and RFID cards is their "incompatibility with existing credit card infrastructure, which still predominantly supports conventional plastic credit cards," and that they are "susceptible to theft and/or compromise." This forms the primary motivation for a POSA to combine and modify these known technologies.

Obviousness Analysis for Independent Claim 1

Independent Claim 1: An apparatus for conducting credit transactions, comprising: a thin card shaped sized body; a memory operative to store a plurality of identification data; a processor coupled to the memory; a user interface for selecting a select identification data of said plurality of identification data; a magnetic card reader detection unit for determining if the body is adjacent to a standard magnetic card reader; and an inductor assembly coupled to the processor and integrated into the body, the inductor assembly under processor control for generating a magnetic field of alternating polarity responsive to the body being detected as adjacent to a standard magnetic card reader, the magnetic field generated in a region substantially encompassing the standard magnetic card reader, wherein the magnetic field encodes said select identification data, and wherein the magnetic field is operable to be read by a magnetic read head of the standard magnetic card reader.

Combination of Prior Art:

• Reference B (Smart IC chip card) + Reference A (Conventional magnetic stripe card) + General knowledge of sensors and dynamic signal generation.

Rationale for Obviousness:

1. Thin card shaped sized body: This element is inherent in both conventional magnetic stripe cards (Reference A) and smart IC chip cards (Reference B).
2. Memory operative to store a plurality of identification data and a processor coupled to the memory: Smart IC chip cards (Reference B) already incorporate a microprocessor and memory, and it was known that these could store multiple applications or profiles, implying the capability to store a plurality of identification data.
3. User interface for selecting a select identification data of said plurality of identification data: Given that smart cards can store multiple accounts, a POSA would be motivated to provide a means for a user to select between them. Adding simple buttons or a small display/keypad to an active smart card (which has a processor and memory) for user interaction was a known design choice in portable electronics by the priority date. The patent itself suggests "inputs at the touch sensor array...can be used to select the appropriate bank or credit provider account."
4. Magnetic card reader detection unit for determining if the body is adjacent to a standard magnetic card reader: Smart IC chip cards (Reference B) often included a magnetic stripe for backward compatibility (Reference B incorporating A). To actively emulate a magnetic stripe, a device needs to know when it is being swiped. Incorporating a sensor (such as a magnetic field sensor, optical sensor, or accelerometer, all generally known in electronics) to detect proximity to a magnetic reader head or the motion associated with a swipe would be an obvious design choice for a POSA aiming to achieve compatibility. The patent describes "rate detection assembly 225, an optical sensor array 230, and a set of accelerometers 235" for this purpose.
5. Inductor assembly coupled to the processor and integrated into the body, the inductor assembly under processor control for generating a magnetic field of alternating polarity responsive to the body being detected as adjacent to a standard magnetic card reader, the magnetic field generated in a region substantially encompassing the standard magnetic card reader, wherein the magnetic field encodes said select identification data, and wherein the magnetic field is operable to be read by a magnetic read head of the standard magnetic card reader: The core of this claim is the dynamic magnetic stripe emulation. Given the desire to make advanced cards (Reference B) compatible with existing magnetic stripe infrastructure (Reference A), a POSA would be motivated to enable the smart card to generate the magnetic stripe data rather than passively containing a static one. The principle of magnetic recording involves alternating magnetic polarity. Using an inductor (such as a planar coil 220, as described in the patent) driven by the smart card's processor (Reference B) to produce such a field, modulated by the detected swipe rate from the detection unit, would be an obvious way to achieve this dynamic emulation. The patent describes this as replicating "the magnetic field interaction that a traditional magnetic strip on a conventional credit card can produce".

Motivation to Combine: The explicit motivation given in the patent is to overcome the "incompatibility with existing credit card infrastructure" of smart cards and RFID cards, and to provide a "single multi-function electronic device that can be used for multiple banks or financial institutions." A POSA would combine the processing power and multiple account storage of a smart card with the ability to dynamically interact with conventional magnetic stripe readers to achieve universal compatibility and multi-account functionality.

Obviousness Analysis for Independent Claim 8

Independent Claim 8: A multi-function electronic device comprising: a near-field communication (NFC) unit; a touch sensor array; a display; a motion rate detection array; a memory, storing a user data and a currency amount; and a processor operatively coupled to the NFC unit, the touch sensor array, the display, the motion rate detection array, and the memory; and wherein the processor initiates a device-to-device transaction between two devices by a detected proximity of a first device and a second device and an input of information by a first user via said touch sensor array, and wherein the device-to-device transaction comprises an exchange of stored currency and said user data between the first device and the second device via the NFC unit.

Combination of Prior Art:

• Reference C (RFID card) + Reference B (Smart IC chip card) + General knowledge of consumer electronics (touchscreens, displays, accelerometers) + General knowledge of peer-to-peer data transfer.

Rationale for Obviousness:

1. Near-field communication (NFC) unit: RFID cards (Reference C) are described as prior art, and NFC is a well-known subset of RFID technology for short-range wireless communication, especially for transactions.
2. Touch sensor array, a display, a motion rate detection array: By the priority date, portable electronic devices (like smartphones) commonly integrated touchscreens, displays (e.g., LCDs as mentioned in the patent), and motion sensors (e.g., accelerometers 235 as described in the patent) into compact form factors. Integrating these into a smart card-like device (Reference B) to enhance user interaction and device awareness would be an obvious step for a POSA.
3. Memory, storing a user data and a currency amount, and a processor operatively coupled to the NFC unit, the touch sensor array, the display, the motion rate detection array, and the memory: Smart IC chip cards (Reference B) inherently include a processor and memory for storing user data. Coupling this processor to additional peripheral components like NFC, touch sensors, displays, and motion sensors is a standard engineering task in the design of sophisticated electronic devices. Storing a currency amount in memory is a basic function for a payment device.
4. Wherein the processor initiates a device-to-device transaction between two devices by a detected proximity of a first device and a second device and an input of information by a first user via said touch sensor array, and wherein the device-to-device transaction comprises an exchange of stored currency and said user data between the first device and the second device via the NFC unit: The ability for two devices to communicate via NFC/RFID when in proximity (Reference C) was known. Implementing a "device-to-device transaction" or "funds or credit/debit transfers" between such devices, authorized by user input on a touch sensor, is a logical application of these existing technologies. Financial transactions involve exchanging data (currency amount, user data), and NFC is a suitable medium for this.

Motivation to Combine: The patent highlights the desire for "funds or credit/debit transfers" between similar devices and enhanced user control. A POSA would be motivated to combine wireless communication capabilities (RFID/NFC, Reference C) with the processing power and data storage of smart cards (Reference B) and add standard user interaction elements (touch, display) and environmental sensors (motion detection) to enable secure and user-friendly direct device-to-device payment transactions.

Obviousness Analysis for Independent Claim 13

Independent Claim 13: A method of performing a transaction comprising: receiving an input signal at a multi-function electronic device from a user enabling operation of a near-field communication (NFC) unit of the device; receiving an indication of an amount of currency for a transaction; generating at said device a limited-duration payment number; and transmitting said limited-duration payment number from said device to a recipient of the transaction.

Combination of Prior Art:

• Reference C (RFID/NFC communication) + Reference B (Smart IC chip card with cryptographic capabilities) + General knowledge of security tokenization/one-time passwords (OTP) and user authentication.

Rationale for Obviousness:

1. Receiving an input signal at a multi-function electronic device from a user enabling operation of a near-field communication (NFC) unit of the device: Given the security concerns with wireless communication, it is a common security practice to require explicit user authorization to activate sensitive features. The patent explicitly states "wireless communication means... are in a powered-down, or disabled, state prior to receiving an authenticated activation signal from a user." This would be an obvious security enhancement to existing RFID/NFC cards (Reference C) to prevent unauthorized "listening-in."
2. Receiving an indication of an amount of currency for a transaction: This is a fundamental step in any transaction and can be achieved through a user interface, such as the touch sensor array described in the patent.
3. Generating at said device a limited-duration payment number: Smart IC chip cards (Reference B) possess cryptographic capabilities and processors. The concept of using temporary or one-time credentials (like OTPs) for enhanced security in financial transactions or online authentication was well-established by the priority date. A POSA, motivated by the patent's stated "security concerns... as they can all be, in various ways, susceptible to theft and/or compromise," would find it obvious to apply a tokenization scheme using the smart card's processor and real-time clock to generate unique, temporary payment numbers for each transaction. The patent highlights that this makes "unauthorized use... highly unlikely."
4. Transmitting said limited-duration payment number from said device to a recipient of the transaction: Once generated, transmitting this payment number via the activated NFC unit (Reference C) is a straightforward application of existing wireless communication technology.

Motivation to Combine: The primary motivation, as stated in the patent, is to address "security concerns of a payment card owner" and prevent "fraudulent transactions." A POSA would combine the wireless capabilities of RFID/NFC cards (Reference C) and the processing/cryptographic capabilities of smart cards (Reference B) with established security practices (tokenization/OTPs) to create a more secure payment method. Explicit user activation of wireless communication and the generation of limited-duration payment numbers are obvious steps to mitigate known vulnerabilities.

Obviousness Analysis for Independent Claim 14

Independent Claim 14: An Apparatus for conducting credit transactions comprising, wherein the edge of said device contains a connector for connection to standard computing devices such as a USB interface.

Combination of Prior Art:

• Reference B (Smart IC chip card) + General knowledge of portable electronic device connectivity.

Rationale for Obviousness:

1. Apparatus for conducting credit transactions: This is covered by smart IC chip cards (Reference B).
2. Wherein the edge of said device contains a connector for connection to standard computing devices such as a USB interface: Many portable electronic devices, including various smart card readers or more advanced smart card-like tokens, commonly incorporate standard connectors like USB for power, data transfer, firmware updates, or configuration. Given that the multi-function electronic device is a "smart" device with a processor and memory, providing a means for it to interact with a computer system for tasks like "online purchases" or downloading "user data and other essential information" (as described in the patent) would be an obvious design choice for a POSA.

Motivation to Combine: The motivation would be to provide convenient and widely compatible means for charging, configuration, updates, and data exchange with a host computing device for a smart payment apparatus. USB is a ubiquitous standard for this purpose, making its inclusion an obvious engineering decision. The patent mentions the device "is equipped with a means 570 for communicating with the USB port on a computer or other device in order to make online purchases," directly illustrating this motivation.