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公开(公告)号：US5046102A
公开(公告)日：1991-09-03
申请号：US918468
申请日：1986-10-14
CPC分类号： H04R25/502
摘要： A hearing aid has a sound-receiving microphone from which an incoming signal is supplied to a number of different channels, each channel being allocated to a different frequency range within a total expected range of frequencies for the incoming signal. Each channel includes a circuit for measuring the strength of the signal within the frequency range for that channel and for changing the respective strengths of the signals in the other channels by suppressing weak signal channels in favor of strong signal channels.
摘要翻译： 助听器具有声音接收麦克风，通过该接收麦克风将输入信号提供给多个不同的通道，每个通道被分配到用于输入信号的总预期频率范围内的不同频率范围。 每个通道包括用于测量该通道的频率范围内的信号的强度的电路，并且用于通过抑制弱信号通道来改善其他通道中的信号的各自的强度，以利于强信号通道。
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公开(公告)号：US4773095A
公开(公告)日：1988-09-20
申请号：US918469
申请日：1986-10-14
CPC分类号： H04R1/406 , H04R25/405 , H04R25/407 , H04R2201/403
摘要： A hearing aid which can be built into a frame, such as eyeglasses, to be worn by a hearing-impaired person has a first microphone arrangement having a directional reception pattern, and a second microphone arrangement for sound locating. The second microphone arrangement includes a first locating microphone disposed in the region of one ear of the hearing-impaired person, and a second locating microphone disposed in the region of the other ear. The signal from both locating microphones are mixed by a low-pass filter with the signal from the microphone arrangement having a directional reception pattern, and the output of the mixing operation is supplied in common to both ears of the hearing-impaired person.
摘要翻译： 可以内置在由听力受损人员佩戴的框架（例如眼镜）中的助听器具有具有定向接收图案的第一麦克风布置和用于声音定位的第二麦克风布置。 第二麦克风装置包括设置在听力受损人的一个耳朵区域中的第一定位麦克风和设置在另一个耳朵区域中的第二定位麦克风。 来自两个定位麦克风的信号通过低通滤波器与来自具有定向接收模式的麦克风装置的信号混合，并且混合操作的输出被共同地供给听力受损人员的双耳。
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公开(公告)号：US4712244A
公开(公告)日：1987-12-08
申请号：US918497
申请日：1986-10-14
IPC分类号： H04R5/027 , H04R1/02 , H04R1/40 , H04R3/00 , H04R5/04 , H04R25/00 , H04R25/02 , H04R1/04 , H04R1/20
CPC分类号： H04R25/407 , H04R25/405 , H04R2201/403 , H04R2225/43
摘要： A directional microphone arrangement has a number of discrete microphones each having an electrical output and elements for deriving first and second electrical signals which are 180.degree. out of phase with respect to each other from the outputs of the microphones. A third signal is also derived through differentiation from one of the microphone outputs which is 90.degree. out of phase with respect to one of the first or second signals. All of the first, second and third signals are added in a summing unit, the output of the summing unit forming the output for the arrangement.
摘要翻译： 定向麦克风装置具有各自具有电输出的多个离散麦克风和用于从麦克风的输出相对于彼此相差180度异相的第一和第二电信号的元件。 第三信号也是通过与麦克风输出之一区分而导出的，该麦克风输出相对于第一或第二信号中的一个信号是90°异相。 所有第一，第二和第三信号被加到一个求和单元中，该求和单元的输出形成该排列的输出。
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