3M於2014.4.8.向Minnesota District Court控告HM的ION IQ Wireless Drive-Thru Audio
System侵害其US 8,694,040專利。
ION IQ Wireless Drive-Thru Audio
System是什麼呢？它其實包含了耳機和腰掛式通訊主機，可與遠端通訊，好玩的地方來了，它為什麼會侵害3M的專利呢？
3M的US
8,694,040專利又在做什麼呢？這個專利主要是複數個耳機與一個基地台通訊，另有一個喇叭位於得來速車道的菜單旁，並配置一個麥克風供車輛駕駛點單使用，對講機系統提供多個參數用以調控系統配置，很顯然，這個專利是使用於免下車訂購及取餐\的對講機通訊系統，看出來什麼了嗎？
這個專利出來，應該要擔心的是麥當當才對呀，它應該擔心被告，而3M又為什麼沒去告它？這還蠻有趣的！
US8,694,040
Title
: Remotely configurable wireless intercom system for an establishment
Filing
Date : 2011.8.22.
Issue Date : 2014.4.8.
Abstract :
Systems and methods
associated with an intercom system for a drive-through, quick service restaurant
facility is disclosed. Generally, a plurality of headsets is configured for
communication with a base station. A speaker is associated with the
drive-through facility is configured to be located near a menu board, and is
configured for communication with the base station. A microphone is also
configured to be located near the menu board and configured for communication
with the base station. A plurality of parameters control the configuration of
the intercom system, and the base station is connectable to a wide area
communication network to enable remote adjustment of the plurality of
parameters.
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