Abstract: A building system has an elevator system controlled by a controller system to move an elevator car between building floors, and a registration computer system communicatively coupled to the controller system. The registration computer system generates an activation (QR) code that a user requesting elevator service scans with a mobile communications device. The activation code encodes user information including access rights of the user in the building. A software application executable by the mobile communications device responds to the activation code by generating a graphical user interface with displayed content determined by the user information in the activation code. The software application generates an optical credential upon the user specifying the elevator service.

Abstract: The present disclosure describes a wireless microphone system that allows one or more microphones to wirelessly communicate with a receiver. Additionally, the wireless microphone system may allow for a plurality of microphones to be used interchangeably with the receiver. To ensure communication between the receiver and the one or more microphones, the receiver may occasionally transmit a synchronization signal to the one or more microphones. In response to receiving the synchronization signal, at least one of the one or more microphones may determine that a clock of the at least one microphone is drifting from the master audio clock of the receiver. The at least one microphone may then adjust the microphone's audio clock to re-synchronize the audio clock of the microphone with the master audio clock of the receiver.

Abstract: The present disclosure describes a wireless microphone system that allows one or more microphones to wirelessly communicate with one or more wireless receivers. The wireless microphone system may allow for a plurality of microphones to be used interchangeably with the one or more receivers. The communications between the one or more wireless microphones and the one or more wireless receivers may utilize more than one wireless communication protocol, such as Bluetooth Low Energy (BLE) as well as a proprietary protocol such as a non-Bluetooth 2.4 GHz wireless communication protocol, and the system may switch between the wireless communication protocols. The one or more wireless microphones may further synchronize communications with the one or more receivers.

Abstract: A building system has an elevator system controlled by a controller system to move an elevator car between building floors, and a registration computer system communicatively coupled to the controller system. The registration computer system generates an activation (QR) code that a user requesting elevator service scans with a mobile communications device. The activation code encodes user information including access rights of the user in the building. A software application executable by the mobile communications device responds to the activation code by generating a graphical user interface with displayed content determined by the user information in the activation code. The software application generates an optical credential upon the user specifying the elevator service.

Abstract: The present disclosure describes a wireless microphone system that allows one or more microphones to wirelessly communicate with a receiver. Additionally, the wireless microphone system may allow for a plurality of microphones to be used interchangeably with the receiver. To ensure communication between the receiver and the one or more microphones, the receiver may occasionally transmit a synchronization signal to the one or more microphones. In response to receiving the synchronization signal, at least one of the one or more microphones may determine that a clock of the at least one microphone is drifting from the master audio clock of the receiver. The at least one microphone may then adjust the microphone's audio clock to re-synchronize the audio clock of the microphone with the master audio clock of the receiver.

Abstract: A process for securely pairing devices. A host device receives an input indicating a user credential for logging into the host device and initiates a scanning process for discovering target devices available for pairing with the host device. During the scanning process, the host device receives wireless pairing information from a target device. The wireless pairing information includes a unique device identifier associated with the target device and an electronic signature generated as a function of a signature key stored at the target device and the unique device identifier. The host device compares the electronic signature with a run-time signature generated at the host device as a function of the user credential received at the host device and the unique device identifier. The host device then initiates a pairing process to establish a short-range communication link with the target device when the electronic signature matches with the run-time signature.

Abstract: A process for securely pairing devices. A host device receives an input indicating a user credential for logging into the host device and initiates a scanning process for discovering target devices available for pairing with the host device. During the scanning process, the host device receives wireless pairing information from a target device. The wireless pairing information includes a unique device identifier associated with the target device and an electronic signature generated as a function of a signature key stored at the target device and the unique device identifier. The host device compares the electronic signature with a run-time signature generated at the host device as a function of the user credential received at the host device and the unique device identifier. The host device then initiates a pairing process to establish a short-range communication link with the target device when the electronic signature matches with the run-time signature.

Abstract: Methods of fabricating a memory cell of a semiconductor device, e.g., an EEPROM cell, having a sidewall oxide are disclosed. A memory cell structure may be formed including a floating gate and an ONO film over the conductive layer. A sidewall oxide may be formed on a side surface of the floating gate by a process including depositing a thin high temperature oxide (HTO) film on the side surface of the conductive layer, and performing a rapid thermal oxidation (RTO) anneal. The thin HTO film may be deposited before or after performing the RTO anneal. The sidewall oxide formation process may provide an improved memory cell as compared with known prior art techniques, e.g., in terms of endurance and data retention.

Abstract: A method, apparatus, and system for application controlled network selection between a broadband network and a narrowband network include operating an application with an end device with a narrowband connection to the end device; acquiring a source broadband connection comprising a source broadband network address; negotiating a peer-to-peer broadband connection with the end device utilizing the narrowband connection to communicate the source broadband network address; utilizing the peer-to-peer broadband connection for data associated with the application responsive to successful negotiating; and managing the peer-to-peer broadband connection using the narrowband connection as a control channel therefor. The narrowband connection can include Digital Mobile Radio (DMR), Land Mobile Radio (LMR), Project 25 (P25), Terrestrial Trunked Radio (TETRA), or the like.

Abstract: Methods of fabricating a memory cell of a semiconductor device, e.g., an EEPROM cell, having a sidewall oxide are disclosed. A memory cell structure may be formed including a floating gate and an ONO film over the conductive layer. A sidewall oxide may be formed on a side surface of the floating gate by a process including depositing a thin high temperature oxide (HTO) film on the side surface of the conductive layer, and performing a rapid thermal oxidation (RTO) anneal. The thin HTO film may be deposited before or after performing the RTO anneal. The sidewall oxide formation process may provide an improved memory cell as compared with known prior art techniques, e.g., in terms of endurance and data retention.

Abstract: An electrically erasable programmable read only memory (EEPROM) cell may include a substrate including at least one active region, a floating gate adjacent the substrate, a write/erase gate defining a write/erase path for performing high voltage write and erase operations, and a read gate defining a read path for performing low voltage read operations, wherein the read path is distinct from the write/erase path. This allows for a smaller read gate oxide, thus allowing the cell size to be reduced. Further, the EEPROM cell may include two independently controllable read gates, thereby defining two independent transistors which allows better programming voltage isolation. This allows the memory array to be drawn using a common source instead of each column of EEPROM cells needing its own source line. This makes the array more scalable because the cell x-dimension would otherwise be limited by each column needing two metal 1 pitches.

Abstract: A method, apparatus, and system for application controlled network selection between a broadband network and a narrowband network include operating an application with an end device with a narrowband connection to the end device; acquiring a source broadband connection comprising a source broadband network address; negotiating a peer-to-peer broadband connection with the end device utilizing the narrowband connection to communicate the source broadband network address; utilizing the peer-to-peer broadband connection for data associated with the application responsive to successful negotiating; and managing the peer-to-peer broadband connection using the narrowband connection as a control channel therefor. The narrowband connection can include Digital Mobile Radio (DMR), Land Mobile Radio (LMR), Project 25 (P25), Terrestrial Trunked Radio (TETRA), or the like.

Abstract: An electrically erasable programmable read only memory (EEPROM) cell may include a substrate including at least one active region, a floating gate adjacent the substrate, a write/erase gate defining a write/erase path for performing high voltage write and erase operations, and a read gate defining a read path for performing low voltage read operations, wherein the read path is distinct from the write/erase path. This allows for a smaller read gate oxide, thus allowing the cell size to be reduced. Further, the EEPROM cell may include two independently controllable read gates, thereby defining two independent transistors which allows better programming voltage isolation. This allows the memory array to be drawn using a common source instead of each column of EEPROM cells needing its own source line. This makes the array more scalable because the cell x-dimension would otherwise be limited by each column needing two metal 1 pitches.

Abstract: A system and method for routing audio for a vehicle mounted communication system includes activating (210) a (Push-To-Talk) PTT button associated with a handheld or rear microphone and determining (220) whether a short range wireless device is operationally coupled with the vehicle mounted communication device. In accordance with an embodiment, first audio signals received (260) from a microphone of the short range wireless device are transmitted to a remote party (265) when the short range wireless device is operationally coupled to the vehicle mounted communication device. Second audio signals received (270) from a remote party are routed (275) to a speaker of the short range wireless device, when the short range wireless device is operationally coupled with the vehicle mounted communication device and the PTT button is activated.

Abstract: A system and method for routing audio for a vehicle mounted communication system includes activating (210) a (Push-To-Talk) PTT button associated with a handheld or rear microphone and determining (220) whether a short range wireless device is operationally coupled with the vehicle mounted communication device. In accordance with an embodiment, first audio signals received (260) from a microphone of the short range wireless device are transmitted to a remote party (265) when the short range wireless device is operationally coupled to the vehicle mounted communication device. Second audio signals received (270) from a remote party are routed (275) to a speaker of the short range wireless device, when the short range wireless device is operationally coupled with the vehicle mounted communication device and the PTT button is activated.

Abstract: A direct access arrangement (DAA) device configured to interface a security alarm modem with a phone network. The DAA device comprises a receive optical isolator (OI) module and first and second transmit OI modules. The transmit OI modules are joined in parallel with one another to receive signals from the security alarm modem and convey the signals to the phone network. The receive IO and first and second transmit OI modules may each be interconnected to at least partially cancel distortion generated by the first and second transmit IO modules.

Abstract: A system (100) and method (400) for radio configuring is provided. The method can include connecting (402) a non-volatile memory storage device (120) to a first radio (110) having a first radio configuration (112), saving (404) a list of radio configurable parameters (300) in the first radio to the non-volatile memory storage device, removing (406) the non-volatile memory storage device from the first radio, connecting (408) the non-volatile memory storage device to a second radio (130) having a second configuration (134), and copying (410) the list of radio configurable parameters from the non-volatile memory storage device to the second radio for replicating the first configuration on the second radio. The non-volatile memory storage device can be a Universal Serial Bus (USB) memory device, a portable Flash memory device, or a compact Flash device.

Abstract: A direct access arrangement (DAA) device is provided that is configured to interface a security alarm modem with a phone network. The DAA device comprises a receive optical isolator (OI) module having a receive input side and a receive output side. The receive input side includes a receive input line configured to receive a remote signal from the phone network. The receive output side includes a receive output line configured to convey the remote signal to a security alarm modem. First and second transmit OI modules are provided that each have a transmit input side and a transmit output side. The transmit input sides have transmit input lines joined in parallel with one another and configured to receive transmit signals from the security alarm modem. The transmit output sides have transmit output lines joined in parallel with one another and configured to convey the transmit signals to the phone network.

Abstract: Programmable logic devices and techniques for programming and/or reconfiguring these devices are disclosed. For example, in accordance with an embodiment of the present invention, a programmable logic device is disclosed that incorporates flash memory and SRAM and includes multiple data ports for programming the flash memory and/or the SRAM.

Abstract: A simple, but intelligent watchdog circuit uses an up/down counter for its delay element. A watchdog event will occur if the counter is allowed to over flow or under flow its boundaries (in either direction). The system objective is to keep the counter within its boundaries by controlling the direction of the count. The count direction is simply a function of the Most Significant Bit (MSB) of the counter. Thus, the system must simply monitor the counters MSB and perform a little intelligent to determine the desired count direction.