Abstract: An aircraft radio comprises a receiver, an audio output, and a processing element. The receiver is tuned to a first radio frequency which provides a first audio signal and a second radio frequency which provides a second audio signal. The audio output provides an audio signal to a listening device. The processing element is coupled to a memory element and is configured to tune the receiver to the first radio frequency for a first time period, present the first audio signal to the audio output during the first time period, tune the receiver to the second radio frequency for a second time period to detect presence of the second audio signal, and present audio derived from the first audio signal to the audio output during at least a portion of the second time period.

Abstract: An aircraft audio panel includes a plurality of audio inputs each configured for receiving audio communications from an audio source; a plurality of audio outputs each configured for outputting the audio communications to audio equipment in the aircraft; selecting circuitry for selecting the audio communications between the audio inputs and the audio outputs; a single selector for permitting selection of one of the audio inputs or audio outputs for adjustment; and a single audio controller for permitting adjustment of an audio characteristic of the selected audio input or audio output. The audio panel may also include an audio characteristic indicator for indicating an audio characteristic of the selected audio input or audio output. The selecting circuitry may also implement a routing mode in which a user may first initiate the routing mode, then select one of the audio inputs for routing, and then select any one of the audio outputs for receiving audio communications from the selected audio input.

Abstract: An aircraft radio comprises a receiver, an audio output, and a processing element. The receiver is tuned to a first radio frequency which provides a first audio signal and a second radio frequency which provides a second audio signal. The audio output provides an audio signal to a listening device. The processing element is coupled to a memory element and is configured to tune the receiver to the first radio frequency for a first time period, present the first audio signal to the audio output during the first time period, tune the receiver to the second radio frequency for a second time period to detect presence of the second audio signal, and present audio derived from the first audio signal to the audio output during at least a portion of the second time period.

Abstract: Techniques are described to determine that an electrical short has occurred on a communication channel based on monitoring a power level of the communication channel with respect to a reference power level. In an implementation, the aviation communication apparatus includes a first voltage source that provides a first voltage input to a first communication channel of a stereo jack for a headset, a voltage monitor that monitors a voltage level of the first communication channel with respect to a reference voltage level of the first communication channel and determines that an electrical short has occurred on the first communication channel based on the monitoring. Accordingly, an electrical short indicator may indicate responsive to the voltage monitor determining that the electrical short has occurred.

Abstract: Techniques are described to determine that an electrical short has occurred on a communication channel based on monitoring a power level of the communication channel with respect to a reference power level. In an implementation, the aviation communication apparatus includes a first voltage source that provides a first voltage input to a first communication channel of a stereo jack for a headset, a voltage monitor that monitors a voltage level of the first communication channel with respect to a reference voltage level of the first communication channel determines that an electrical short has occurred on the first communication channel based on the monitoring. Accordingly, an electrical short indicator may indicate responsive to the voltage monitor determining that the electrical short has occurred.

Abstract: An aircraft audio panel includes a plurality of audio inputs each configured for receiving audio communications from an audio source; a plurality of audio outputs each configured for outputting the audio communications to audio equipment in the aircraft; selecting circuitry for selecting the audio communications between the audio inputs and the audio outputs; a single selector for permitting selection of one of the audio inputs or audio outputs for adjustment; and a single audio controller for permitting adjustment of an audio characteristic of the selected audio input or audio output. The audio panel may also include an audio characteristic indicator for indicating an audio characteristic of the selected audio input or audio output. The selecting circuitry may also implement a routing mode in which a user may first initiate the routing mode, then select one of the audio inputs for routing, and then select any one of the audio outputs for receiving audio communications from the selected audio input.

Abstract: An aircraft audio panel includes a plurality of audio inputs each configured for receiving audio communications from an audio source; a plurality of audio outputs each configured for outputting the audio communications to audio equipment in the aircraft; selecting circuitry for selecting the audio communications between the audio inputs and the audio outputs; a single selector for permitting selection of one of the audio inputs or audio outputs for adjustment; and a single audio controller for permitting adjustment of an audio characteristic of the selected audio input or audio output. The audio panel may also include an audio characteristic indicator for indicating an audio characteristic of the selected audio input or audio output. The selecting circuitry may also implement a routing mode in which a user may first initiate the routing mode, then select one of the audio inputs for routing, and then select any one of the audio outputs for receiving audio communications from the selected audio input.

Abstract: A system and method which implement automatic speech recognition (ASR) and text-to-speech (TTS) programs to permit pilots, co-pilots, and other persons to more quickly and easily perform control and monitoring tasks on aircraft. The system may be used to automatically change the frequency of an aircraft radio when a pilot or co-pilot is instructed to do so by ATC.

Abstract: A system and method which implement automatic speech recognition (ASR) and text-to-speech (TTS) programs to permit pilots, co-pilots, and other persons to more quickly and easily perform control and monitoring tasks on aircraft. The system may be used to automatically change the frequency of an aircraft radio when a pilot or co-pilot is instructed to do so by ATC.

Abstract: A system and method which implement automatic speech recognition (ASR) and text-to-speech (TTS) programs to permit pilots, co-pilots, and other persons to more quickly and easily perform control and monitoring tasks on aircraft. The system may be used to automatically change the frequency of an aircraft radio when a pilot or co-pilot is instructed to do so by ATC.

Abstract: A system and method which implement automatic speech recognition (ASR) and text-to-speech (TTS) programs to permit pilots, co-pilots, and other persons to more quickly and easily perform control and monitoring tasks on aircraft. The system may be used to automatically change the frequency of an aircraft radio when a pilot or co-pilot is instructed to do so by ATC.

Abstract: A system and method which implement automatic speech recognition (ASR) and text-to-speech (TTS) programs to permit pilots, co-pilots, and other persons to more quickly and easily perform control and monitoring tasks on aircraft. The system may be used to automatically change the frequency of an aircraft radio when a pilot or co-pilot is instructed to do so by ATC.

Abstract: A system and method which implement automatic speech recognition (ASR) and text-to-speech (TTS) programs to permit pilots, co-pilots, and other persons to more quickly and easily perform control and monitoring tasks on aircraft. The system may be used to automatically change the frequency of an aircraft radio when a pilot or co-pilot is instructed to do so by ATC.

Abstract: A telephone system including a process for redirection of voice mail messages to another voice mail box after a predetermined time or after a predetermined number of attempts at notification by radio pager of the owner of voice mail box in which a new voice mail message has been left have failed to cause the voice mail message to be picked up.

Abstract: A telephone system which detects ring signals and detects caller ID signals and decodes them into caller ID data and then reformats the caller ID data into one or more alphanumeric strings useable by another computer process such as a point of sale computer process. User input is accepted such as by manipulation of switches to control the telephone system so as to add predetermine prefix or suffix codes or data to one or more items of caller ID data in accordance with the occurrence or existence of predetermined conditions that must be signalled to the computer process using the caller ID data being formatted by the telephone system.

Abstract: A telephone system including improved voicemail wherein a digital signal processor scans data to be recorded in a voicemail message to find DTMF tones or DTMF mimics in the voice data and removes them from the recording. In one embodiment, the DSP scans for DTMF tones or mimics in the stream of data to be recorded and removes them before recording the data. In another embodiment, the DSP scans for DTMF tones and mimics in the stream of data to be recorded, and marks the starting point and ending point in the stream where DTMF tones or mimics are found, records all the data and then goes back to the recording after it is finished and looks for the markers and removes all data between the markers.

Abstract: A telephone system including improved automated routing of telephone calls based upon caller ID data. If caller ID data is received, it is used as a search key to search a routing table listing extensions normally called by one or more persons identified by their caller IDs. If a match is found, the call is automatically transferred to the extension or voice mail box listed in the routing table. In some embodiments, the caller is given options to block the automatic routing or block recording of a voice mail message in favor of transfer to a caller specified extension or to an attendant. Also disclosed is improved voice mail wherein a digital signal processor scans data to be recorded in a voice mail message to find DTMF tones or DTMF mimics in the voice data and removes them from the recording so that no false DTMF commands will be recognized during playback by any DTMF detector which is active during the playback.

Abstract: A telephone system which detects ring signals and detects caller ID signals and decodes them into caller ID data and then reformats the caller ID data into one or more alphanumeric strings useable by another computer process such as a point of sale computer process. User input is accepted such as by manipulation of switches to control the telephone system so as to add predetermine prefix or suffix codes or data to one or more items of caller ID data in accordance with the occurrence or existence of predetermined conditions that must be signalled to the computer process using the caller ID data being formatted by the telephone system.

Abstract: A telephone with a selectable level of sidetone for use in noisy environments. The selectable level of sidetone is achieved by forming a switch-controlled feedback path including a gain setting resistor from the output of a transmit amplifier in a hybrid circuit to a summing node virtual ground at one input of a differential amplifier driving the handset speaker. The summing node is also coupled to the audio output port of the three port hybrid so as to also receive incoming audio signals from the tip and ring lines. A microcontroller having configuration data controls whether the switch is closed and the feedback path exists or the switch is open and no feedback occurs. Lower sidetone or no sidetone is useful in phones used in noisy environments such as factory floors or restaurants.