公开(公告)号：US09448306B1

公开(公告)日：2016-09-20

申请号：US13964991

申请日：2013-08-12

Applicant: Marvell International Ltd.

Inventor： Wentao Zhang ,  Victor Lin

IPC: G01S19/25

CPC classification number: G01S19/25 ,  G01S19/21 ,  G01S19/40

Abstract: In a method of implementing a positioning system a buffer is configured to store a buffer record for each of a plurality of position fixes determined by the receiver and a database is configured to store a database record for each of the position fixes. Buffer records are accumulated, with each buffer record corresponding to one of the position fixes determined by the receiver. A first threshold position near an area in which a degradation event occurs is identified and recorded in a first database record. A second threshold position near the area is identified in a second database record. The second threshold position is indicated by one of the position fixes outside of the area and is proximate to a position at which the degradation event ends.

公开(公告)号：US08824956B1

公开(公告)日：2014-09-02

申请号：US13675723

申请日：2012-11-13

Applicant: Marvell International Ltd.

Inventor： Zhenyu Zhang ,  Sheng Lu ,  Jing Jiang ,  Victor Lin ,  Hunghsin Kuo

IPC: H04H40/00 ,  G06F13/42

CPC classification number: G06F13/42 ,  G06F13/4291 ,  H04W4/00

Abstract: A method includes receiving samples of audio data and storing the samples of audio data in a buffer. Each of the samples of audio data includes a plurality of bits. The method also includes transmitting each of the plurality of bits, of each of the samples of audio data retrieved from the buffer, across a single-bit bus; and subsequent to transmitting each of the samples, transmitting a selected number of dummy bits across the single-bit bus. The selected number is greater than one. The method further includes analyzing activity of the buffer and, based on the activity of the buffer, dynamically adjusting the selected number. The method also includes acquiring the samples of audio data transmitted across the single-bit bus and ignoring the dummy bits. The method further includes generating analog signals in response to the samples of audio data acquired across the single-bit bus.

Abstract translation: 一种方法包括接收音频数据的样本并将音频数据的样本存储在缓冲器中。 音频数据的每个样本包括多个比特。 该方法还包括通过单位总线传送从缓冲器检索的每个音频数据样本的多个比特中的每一个; 并且在发送每个采样之后，在单位总线上发送选定数量的虚拟位。 所选号码大于1。 该方法还包括分析缓冲器的活动，并且基于缓冲器的活动来动态地调整所选择的数量。 该方法还包括获取通过单位总线发送的音频数据的样本，并忽略虚拟位。 该方法还包括响应于跨单位总线获取的音频数据的样本产生模拟信号。