Abstract: RFID tags are commanded to generate a pilot tone in their backscatter. When the backscattered pilot tone is received in the reader, the pilot tone is used to estimate the tag period/frequency. Then, the estimate is used to seed and lock a symbol timing recovery loop, which provides a detected signal to one or more correlators for detecting the tag preamble. A delayed version of the received tag signal is compared against a baseline signal threshold established from the received signal to detect the pilot tone.

Abstract: An interactive prompt generation and TTS optimization tool with a user-friendly graphical user interface is provided. The tool accepts HTS abstraction or speech recognition processed input from a user to generate an enhanced initial waveform for synthesis. Acoustic features of the waveform are presented to the user with graphical visualizations enabling the user to modify various parameters of the speech synthesis process and listen to modified versions until an acceptable end product is reached.

Abstract: Technologies are generally described for substantially maximizing capacity in a wavelength division multiplexing (WDM) passive optical network (PON). An “achievable rate region” may be defined as a set containing admissible traffic rates of a given WDM PON system such that a volume of an achievable rate region is proportional to a capacity of the network. Deriving the achievable rate region for a particular network, decisions may be made whether incoming traffic rate can or cannot be achieved for that network. Moreover, the achievable rate region may be used to construct a WDM PON utilizing a minimum number of wavelengths, a minimum number of lasers with narrowest tuning ranges, and a minimum number of receivers, thereby reducing a capital expenditure in building the PON system.

Abstract: The present disclosure provides a power rectifier for a Radio Frequency Identification tag circuit. The rectifier is constructed from a pair of complementary MOS transistors. Gates of the transistors have predetermined voltages applied to them. The applied voltages bias the transistors to near their active operating region. During the same time additional control signals are applied to the gates of the transistors, the control signals are synchronous, but out of phase, with each other.

Abstract: Textual preview of a voicemail is generated and provided through email or similar media to users along with the audio version. Transcription of the textual version, as well as additional capabilities such as actionable terms, playback-jump, switching between text and audio versions, direct or metadata based searchability, and enhanced response capabilities are provided based on contextual data obtained from voicemail metadata and user associated data stores such as contact list, email history.

Abstract: A diagnostic dashboard for web applications is provided. The dashboard is presented in a portion of a web page in response to activation of a control in form of a frame along with partially displayed web page contents. Designers and administrators are provided informative data to assist them in discovering root causes for page malfunctioning or slowness, and are enabled to access call stack and exception information in error messages.

Abstract: An automated contact import module enables users to select groups of contacts to import from an email, contact management, scheduling (ECS) application based on viewing contacts by category, organization, email domain, and similar attributes. Contacts in selected groups are imported to a CRM application with automatic data mapping. Communication history may be part of the import process by searching previously indexed emails, appointments, and comparable data associated with the selected contacts effectively creating a data hierarchy at the CRM application.

Abstract: Client devices/applications associated with a subscriber of an enhanced communication system are enabled to generate communication records identifying individual communication sessions along with tie-breaker values such that the records can be evaluated following a trigger event and duplicate records for the same subscriber can be removed in order to provide accurate information to the subscriber when the event is over.

Abstract: A data resiliency layer provides manageable data resiliency policy options for email related applications. Through one or more APIs such applications are enabled to query whether a data resiliency policy is satisfied for a given mailbox or database at a given point in time. Email related applications may consume this information to modify their behavior such as to wait, repeat, or fail the actions at hand to the point where data committal is guaranteed to a degree specified by the data resiliency policy.

Abstract: In a video conference system capable of providing multiple video streams, displayed streams for participants are configured based on automatic selection by the system (such as active speaker) and manual override by the participants. The displayed views are further enhanced by implementing duplicate detection to avoid display of duplicate streams between the automatic selections and manual selections.

Abstract: An RFID reader uses an adaptive filter to mitigate the effects of colored noise in tag reply signals. The adaptive filter may be a linear equalizer, a linear-predictive canceller, or a decision-feedback equalizer. The adaptive filter estimates the colored noise portion of the signal received from the tag and removes the noise estimate from the tag signal. The adaptive filter bases its noise estimate on the difference between a desired signal and a portion of the received signal. The reader uses reader-generated training data, a CW signal, and/or portions of the tag reply signal to adapt the filter.

Abstract: The present disclosure provides a power rectifier for a Radio Frequency Identification tag circuit. The power rectifier is constructed from a pair of hybrid RF rectifier elements that include a MOS transistor. Gates of the transistors have predetermined voltages applied to them. The applied voltages bias the transistors to near their active operating regions, while an additional RF control signal is being applied to the gates of the transistors.

Abstract: An Integrated Circuit (IC) for an RFID tag contains at least two demodulators, each having an RF input port configured to receive and demodulate an RF input signal, with one or more of the RF inputs being a differential signal, and with at least two of the RF input ports electrically isolated from each other. The RFID IC contains two or more envelope detectors for recovering analog modulation envelope signals from the RF signals, and one or more slicers to convert the modulation envelopes to at least one digital signal. The analog signals from the two envelope detectors may be first combined, then converted to a digital signal. Alternatively, the analog modulation envelopes may be first converted to digital signals then combined in a digital combiner. Alternatively, the analog modulation envelopes may be converted to separate digital signals without being combined.

Abstract: Enhanced communication systems with various resiliency and survivability aspects are provided. Data center, cluster, network, and load balancer survivability are provided for seamless communication experience in case of data center, cluster, discovery infrastructure, or hardware load balancer failures. Call, data, and authentication survivability are provided through dynamic re-routing over alternative networks, continuous data replication, and alternative authentication mechanisms. Seamless failover is ensured through use of identical signaling protocols and data carried by protocols between primary and backup clusters. Voicemail resiliency is achieved by re-routing calls directed to voicemail over alternative paths such as PSTN connections.

Abstract: A rope-jumping algorithm is employed in a Hidden Markov Model based text to speech system to determine start and end models and to modify the start and end models by setting small co-variances. Disordered acoustic parameters due to violation of parameter constraints are avoided through the modification and result in stable line frequency spectrum for the generated speech.

Abstract: Location of a communication network subscriber is determined employing confidence metrics such as remote vs. local computer usage, primary user in a multi-user computing environment, likelihood of forgery, and comparable ones. A fine-grained location determination is then made based on the metric results and directory information for the particular subscriber such that services like emergency services can be provided with accurate location information.

Abstract: Approaches are provided for monitoring, analyzing, and influencing organizational behaviors through multi-modal communication systems. Desired and undesired behaviors and applicable organizational contexts are defined and action plans developed. The behaviors are then monitored through communication sessions between members and analyzed for comparison to the action plans such that feedback may be provided at individual and/or organizational levels to influence the behaviors.

Abstract: Conversation rights for multi-modal communications are managed and enforced in an enhanced communication system. Through physical and/or software components, rights are assigned to a communication session and related components upon user request. Permitted participants of the session are provided access tools such as decryption keys. Restrictions based on the assigned conversation rights are extended to preserved recordings and associated documents of the communication session.

Abstract: Established multimodal conversations are enabled to be parked within an enhanced communication system such that a subscriber of the system can be notified through a variety of means and enabled to retrieve selected or all modalities for continuing the conversation. Different modalities may be parked together or separately. While waiting for the subscriber to retrieve the conversation, a participant may receive audio, video, presentation, or other forms of content as playback.

Abstract: Apparatus and systems may include integrated circuits for use with Radio Frequency Identification (RFID) tags having an antenna structure with at least three coupling ends. The integrated circuits may include three or more nodes corresponding respectively to the at least three coupling ends, and a modulator switch to receive a single modulator switching signal input. Methods may include those used to form and operate such circuits. Additional apparatus, systems, and methods are disclosed.