Abstract: Systems, methods and computer-readable media are provided for capturing audio that is memorable. Buffered audio is stored in a first device over a recent interval such as 5 minutes. In the absence of an indication a circular buffer is used that continually replaces old audio. When a user hears something that he wants to capture, he manipulates a control on the first device that results in buffered audio being transferred to another storage area. An audio file is automatically created. A second device can receive the created audio file, and it is capable of annotating the audio with a more descriptive title, an appropriate photo, etc. The second device is also able to provide a control interface for the capture application in the first device.

Abstract: Systems, methods, and devices are provided for a near-field communication (NFC) system for use with mobile computing device. In an embodiment, an RFID reader device is configured for operation with a smart phone using the audio (headphone) port, and which is entirely powered and controlled by the mobile computing device through the audio port. A specially tuned charge pump ladder is used for powering the RFID reader device over a TRRS connection with the mobile computing device, without requiring an internal power source, such as a battery, in the RFID reader device. In an embodiment, an app running on the mobile computing device includes functionality for providing power and data channels over the TRRS port to the RFID reader device.

Abstract: Systems, methods and computer-readable media are provided for capturing audio that is memorable. Buffered audio is stored in a first device over a recent interval such as 5 minutes. In the absence of an indication a circular buffer is used that continually replaces old audio. When a user hears something that he wants to capture, he manipulates a control on the first device that results in buffered audio being transferred to another storage area. An audio file is automatically created. A second device can receive the created audio file, and it is capable of annotating the audio with a more descriptive title, an appropriate photo, etc. The second device is also able to provide a control interface for the capture application in the first device.

Abstract: Systems, methods, and devices are provided for a near-field communication (NFC) system for use with mobile computing device. In an embodiment, an RFID reader device is configured for operation with a smart phone using the audio (headphone) port, and which is entirely powered and controlled by the mobile computing device through the audio port. A specially tuned charge pump ladder is used for powering the RFID reader device over a TRRS connection with the mobile computing device, without requiring an internal power source, such as a battery, in the RFID reader device. In an embodiment, an app running on the mobile computing device includes functionality for providing power and data channels over the TRRS port to the RFID reader device.