Method and system for visual indication of the function of wireless receivers and a wireless receiver
First Claim
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1. A method for visual confirmation of the functioning of wireless receiver in a classroom, the method comprising:
- generating a wireless FM signal comprising a carrier signal in a teacher unit including a transmitter;
transmitting from the transmitter said wireless FM signal to a group of student units, each including a receiver;
receiving said wireless FM signal by the receivers in the student units;
detecting presence of said carrier signal in the received wireless FM signal;
initiating a timer in each receiver of the group of receivers responsive to the detected presence of said carrier signal;
intermittently flashing a visual indicator of each receiver that has initiated its respective timer, based on an output signal of said respective timer; and
synchronizing the flashing with the activation of said signal indicating the presence of the carrier signal, whereinthe intermittence and flashing of the visual indicators of the receivers are synchronized with each other based on the detected carrier signal indicating the presence of the carrier signal, andthe timer is based on a clock of an FM system in each receiver.
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Abstract
A method for visual indication of the function of wireless receivers where a wireless signal is transmitted to a group of receivers, and where each receiver intermittently flashes a visual indicator when a wireless signal is received, whereby the intermittence and flashing of the visual indicators of the receivers are synchronized.
9 Citations
16 Claims
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1. A method for visual confirmation of the functioning of wireless receiver in a classroom, the method comprising:
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generating a wireless FM signal comprising a carrier signal in a teacher unit including a transmitter; transmitting from the transmitter said wireless FM signal to a group of student units, each including a receiver; receiving said wireless FM signal by the receivers in the student units; detecting presence of said carrier signal in the received wireless FM signal; initiating a timer in each receiver of the group of receivers responsive to the detected presence of said carrier signal; intermittently flashing a visual indicator of each receiver that has initiated its respective timer, based on an output signal of said respective timer; and synchronizing the flashing with the activation of said signal indicating the presence of the carrier signal, wherein the intermittence and flashing of the visual indicators of the receivers are synchronized with each other based on the detected carrier signal indicating the presence of the carrier signal, and the timer is based on a clock of an FM system in each receiver. - View Dependent Claims (2, 3, 8, 9, 10, 11, 12)
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4. A classroom amplification system, comprising:
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a teacher unit including a transmitter for wireless transmission of an FM wireless signal comprising a carrier signal, the transmitter configured to transmit the FM wireless signal; and a group of individual student units, each including a receiver, each receiver including a receiving unit configured to receive the FM wireless signal transmitted from the transmitter, a detector configured to detect presence of said carrier signal in the FM wireless signal, a timer configured to receive a result from the detector indicating the presence of said carrier signal and configured to be initiated responsive to said result, and a visual indicator configured to flash intermittently in response to a signal from the timer, wherein the intermittence and flashing of the visual indicators of the student units are synchronized with each other based on the detected carrier signal indicating the presence of the carrier signal, and the timer used for controlling the flashing of the visual indicator in each receiver is configured to receive a signal from a clock of an FM system in each receiver. - View Dependent Claims (5, 6, 13, 14, 15)
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7. A sound amplification unit, comprising:
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a receiver for receiving a wireless FM signal comprising a carrier signal, the receiver including a receiving unit configured to convert the wireless FM signal to an audio signal which is servable to an individual in a manner perceivable as sound; a detector configured to detect presence of the carrier signal in the FM wireless signal;
a timer configured to receive a result from the detector indicating the presence of said carrier signal and configured to be initiated responsive to said result;a visual indicator configured to flash intermittently in response to a signal from the timer, wherein the timer is initiated at the reception of said initiation signal, the intermittence and flashing of the visual indicator of the sound amplification unit is synchronized with visual indicators of other sound amplification units based on the detected carrier signal indicating the presence of the carrier signal, the receiver is an FM receiver, the receiver further comprises an FM clock, and the timer comprises a counter, which is clocked by a signal from the FM clock. - View Dependent Claims (16)
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Specification