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    • 1. 发明申请
    • METHOD AND APPARATUS FOR REDUCING CONTAMINATION OF AN ELECTRICAL SIGNAL
    • 减少电子信号污染的方法和装置
    • WO0213689A3
    • 2003-08-21
    • PCT/US0125480
    • 2001-08-15
    • UNIV CALIFORNIACOHEN MARK S
    • COHEN MARK S
    • G01R33/28A61B5/04A61B5/0476A61B5/055G06F17/00
    • A61B5/04004A61B5/04017A61B5/4094
    • The method of reducing contamination of electrical signals recorded in the presence of repeated interference contamination comprises obtaining an electrical signal recorded in the presence of a contaminating signal, and detecting a timing signal that occurs at a fixed time point during the electrical signal relative to the onset of the contaminating signal. The electrical signal is digitized, wherein the digitizing begins with the timing signal. A plurality of digitized electrical signals is analyzed, wherein the electrical signals are synchronized with respect to the timing signal, to obtain an estimated contaminating signal that is subtracted from the digitized electrical signal. This method can be used with electrophysiological signals, such as EEG, ECG, EMG and galvanic skin response, and for elimination of noise associated with concurrently used methods such as MRI. The method of noise reduction is applicable to recordings of other electrical signals, including audio recordings.
    • 在存在重复的干扰污染的情况下减少记录的电信号的污染的方法包括获得在存在污染信号的情况下记录的电信号,以及检测在电信号期间相对于发生的固定时间点发生的定时信号 的污染信号。 电信号被数字化,其中数字化以定时信号开始。 分析多个数字化电信号,其中电信号相对于定时信号同步,以获得从数字化电信号中减去的估计污染信号。 该方法可用于电生理信号,如EEG,ECG,EMG和电流皮肤反应,以及消除与同时使用的方法如MRI相关的噪声。 噪声降低的方法适用于包括音频记录在内的其他电信号的记录。
    • 2. 发明专利
    • MESSAGING AND PROMOTION FOR DIGITAL AUDIO MEDIA PLAYERS
    • CA2409348C
    • 2010-08-24
    • CA2409348
    • 2001-06-08
    • COHEN MARK S
    • COHEN MARK S
    • G06Q30/02G10K15/02G11B20/10G11B27/10G11B27/11G11B31/00H04H20/40H04H20/57
    • Messaging, such as promotional messaging, is delivered to users of digital audio media players, such as digital disc (40) and tape players. Portable players are especially suited for practice of the invention. Players include a wireless receiver (38) to receive messages and memory for storage of messages. Alternatively, player memory is pre-loaded with messages. A controller plays messages at reasonable times, e.g., at breaks between tracks of the audio disc or tape being played. Advertising or promotional messages are broadcast to capable digital audio players via wireless transmission and stored in memory. The player reads control information on the disc and stores it in memory. The control information is used to play messages from memory. An effective promotion method is enabled through the invention and use of a player capable of message reception, storage and play in accordance with the invention. A promoter can arrange for the distribution of players, for free or at a reduced cost. An event, e.g., a festival or concert, provides a preferred circumstance to target a particular group of recipients of promotional or advertising messages. Promotional messaging that preferably comprises advertising is then broadcast to the distributed players, which store and play messages between tracks.