Abstract:
A frequency agile wireless response system and method of retrieving user response data from a plurality of users includes providing a base unit and a plurality of handheld response units, each communicating with the base unit over a wireless communication link using a frequency agile communication protocol. Base signals are sent with the base unit to the response units over the wireless communication link. Response signals are sent from the response units to the base unit over the wireless communication link. The base signals include a master transmission and at least occasionally include an extension transmission. The master transmission includes information establishing a time mark for the response units. The master transmission also includes information enabling the response units to receive any extension transmission associated with that base signal.
Abstract:
A wireless response system and method of retrieving user selections includes providing a plurality of response units and a plurality of base units. Each of the response units has a wireless response transceiver and an input device. The input device is adapted to receiving a user input selection. The wireless response transceiver is adapted to transmitting a response transmission in response to receipt of a base transmission. Each of the base units has a wireless base transceiver. The base transceiver is adapted to transmitting base transmissions and receiving response transmissions from the response units. Each of the base units and each of the response units are assigned a communication identification. A response unit is adapted to exchanging wireless transmissions with a base unit having a common communication identification with that response unit. Each of said base units is also assigned a base address. The base transmissions include the base address of the base unit transmitting that base transmission. The response transmission includes the base address of the base transmission to which that response transmission is responding. Each of the base units processes response transmissions having a base address in common with the base address of that base unit and does not process response transmissions not having a base address in common with the base address of that base unit.
Abstract:
A frequency agile wireless response system and method of retrieving user response data from a plurality of users includes providing a base unit and a plurality of handheld response units, each communicating with the base unit over a wireless communication link using a frequency agile communication protocol. Base signals are sent with the base unit to the response units over the wireless communication link. Response signals are sent from the response units to the base unit over the wireless communication link. The base signals include a master transmission and at least occasionally include an extension transmission. The master transmission includes information establishing a time mark for the response units. The master transmission also includes information enabling the response units to receive any extension transmission associated with that base signal.
Abstract:
A vehicle interior rearview mirror assembly (10) comprises an accessory (24), a reflective element (18) and a bezel (20). The mirror assembly may define portions of a pocket (23) that at least partially receives and secures the accessory therebetween when the reflective element is at least partially received in the bezel. The mirror assembly (11) may include a microphone (124) and an acoustic cover (126) positioned at least partially over one or more inlet ports (124j, 124k) of the microphone. The acoustic cover may include an outer air flow limiting layer (130b) that substantially limit air flow therethrough and a diffusing material (130a) that may space and support the outer layer from the inlet ports to substantially diffuse air flow that penetrates the outer layer. An acoustic barrier (132) may be positioned between a pair of inlet port of the microphone to enhance the directivity of the microphone.
Abstract:
A vehicle interior rearview mirror assembly comprises an accessory, a reflective element and a bezel. The mirror assembly may define portions of a pocket that at least partially receives and secures the accessory therebetween when the reflective element is at least partially received in the bezel. The mirror assembly may include a microphone and an acoustic cover positioned at least partially over one or more inlet ports of the microphone. The acoustic cover may include an outer air flow limiting layer that substantially limits air flow therethrough and a diffusing material that may space and support the outer layer from the inlet ports to substantially diffuse air flow that penetrates the outer layer. An acoustic barrier may be positioned between a pair of inlet ports of the microphone to enhance the directivity of the microphone.
Abstract:
A wireless response system and method of retrieving user selections includes providing a plurality of response units, each having a wireless response transceiver and an input device and a plurality of base units, each having a wireless base transceiver. The wireless response transceiver is adapted to transmitting a response transmission in response to receipt of a base transmission. The base transceiver is adapted to transmitting base transmissions and receiving response transmissions from the response units. Each of the base units and each of the response units are assigned communication identification. Base transmissions include a unique base address of the base unit transmitting that base transmission. Response transmission includes the base address of the base transmission to which that response transmission is responding. Each of the base units processes response transmissions having its base address and does not process response transmissions not having its base address.
Abstract:
A vehicle interior rearview mirror assembly comprises an accessory, a reflective element and a bezel. The mirror assembly may define portions of a pocket that at least partially receives and secures the accessory therebetween when the reflective element is at least partially received in the bezel. The mirror assembly may include a microphone and an acoustic cover positioned at least partially over one or more inlet ports of the microphone. The acoustic cover may include an outer air flow limiting layer that substantially limits air flow therethrough and a diffusing material that may space and support the outer layer from the inlet ports to substantially diffuse air flow that penetrates the outer layer. An acoustic barrier may be positioned between a pair of inlet ports of the microphone to enhance the directivity of the microphone.