Abstract: This application relates to accessory support devices for supporting portable electronic devices in relation to other electronic computing devices. A multi-part clip includes a housing having a first housing part having a first surface, a second housing part coupled to the first housing part and having a second surface, and an internal volume. The multi-part clip has a circular, ring-shaped magnetic element disposed within the internal volume and forms, through the second surface, a magnetic attachment to a magnetic element of a portable electronic device. The multi-part clip includes a hook-like appendage pivotably coupled to the first surface and has a recess such that, in an actuated configuration, the hook-like appendage extends away from the first surface and the recess is configured to receive a portion of an electronic computing device. The multi-part clip is balanced atop the electronic computing device according to a gravitational force imparted therein.

Abstract: A microphone speaker system includes a base having a speaker, a stand extending between a first end and a second end, the first end coupled to the base, a performance interface coupled to the second end of the stand, and a microphone support coupled to the performance interface. The performance interface is configured to removably retain a music storage/playback device that electrically connects with the speaker through the base. The microphone support is coupled to the performance interface and configured to adjustably support a microphone that electrically connects with the speaker through the base.

Abstract: A method of parameter estimation in a shared channel communications system includes the steps of receiving a preamble including a first sequence corresponding to a sequence having zero autocorrelation, a second sequence having zero autocorrelation, and a third sequence having zero autocorrelation, performing a coarse carrier frequency estimate based on the first sequence, and performing a fine carrier frequency estimate based on the second and third sequences.

Abstract: A microphone speaker system includes a base having a speaker, a stand extending between a first end and a second end, the first end coupled to the base, a performance interface coupled to the second end of the stand, and a microphone support coupled to the performance interface. The performance interface is configured to removably retain a music storage/playback device that electrically connects with the speaker through the base. The microphone support is coupled to the performance interface and configured to adjustably support a microphone that electrically connects with the speaker through the base.

Abstract: A method of parameter estimation in a shared channel communications system includes the steps of receiving a preamble including a first sequence corresponding to a sequence having zero autocorrelation, a second sequence having zero autocorrelation, and a third sequence having zero autocorrelation, performing a coarse carrier frequency estimate based on the first sequence, and performing a fine carrier frequency estimate based on the second and third sequences.

Abstract: A method of parameter estimation in a shared channel communications system includes the steps of receiving a preamble including a first sequence corresponding to a sequence having zero autocorrelation, a second sequence having zero autocorrelation, and a third sequence having zero autocorrelation, performing a coarse carrier frequency estimate based on the first sequence, and performing a fine carrier frequency estimate based on the second and third sequences.

Abstract: A method of parameter estimation in a shared channel communications system includes the steps of receiving a preamble including a first sequence corresponding to a sequence having zero autocorrelation, a second sequence having zero autocorrelation, and a third sequence having zero autocorrelation, performing a coarse carrier frequency estimate based on the first sequence, and performing a fine carrier frequency estimate based on the second and third sequences.

Abstract: A method of parameter estimation in a shared channel communications system includes the steps of receiving a preamble including a first sequence corresponding to a sequence having zero autocorrelation, a second sequence having zero autocorrelation, and a third sequence having zero autocorrelation, performing a coarse carrier frequency estimate based on the first sequence, and performing a fine carrier frequency estimate based on the second and third sequences.

Abstract: A method of parameter estimation in a shared channel communications system includes the steps of receiving a preamble including a first sequence corresponding to a sequence having zero autocorrelation, a second sequence having zero autocorrelation, and a third sequence having zero autocorrelation, performing a coarse carrier frequency estimate based on the first sequence, and performing a fine carrier frequency estimate based on the second and third sequences.