公开(公告)号：US3195132A

公开(公告)日：1965-07-13

申请号：US16662462

申请日：1962-01-16

Applicant: CUTLER HAMMER INC

Inventor： BATTLE FREDERICK H JR ,  BARLAM THOMAS

IPC: G01S1/02 ,  G01S1/64 ,  G01S5/08 ,  G01S19/02 ,  G05D1/06 ,  H03M1/00

CPC classification number: G01S1/022 ,  G01S1/02 ,  G01S1/026 ,  G01S1/64 ,  G01S5/08 ,  G05D1/0661

公开(公告)号：US3191175A

公开(公告)日：1965-06-22

申请号：US2740660

申请日：1960-05-06

Applicant: CUTTLER HAMMER INC

Inventor： BATTLE FREDERICK H JR ,  TATZ ABRAHAM

IPC: G01S1/02 ,  G01S1/64 ,  G01S5/08 ,  G01S19/15 ,  G05D1/06 ,  H03M1/00

CPC classification number: G05D1/0661 ,  G01S1/022 ,  G01S1/64 ,  G01S5/08

公开(公告)号：US3254317A

公开(公告)日：1966-05-31

申请号：US26575263

申请日：1963-03-18

Applicant: CORNING GLASS WORKS

Inventor： BAUER PAUL A

IPC: G01S1/64 ,  H01L27/088 ,  H01L29/00 ,  H03F3/193 ,  H03G1/00 ,  H03H9/36 ,  H03H11/24 ,  H03K17/691 ,  H04L12/54 ,  H04L13/08

CPC classification number: H04L13/08 ,  G01S1/64 ,  H01L27/088 ,  H01L29/00 ,  H03F3/193 ,  H03G1/0029 ,  H03H9/36 ,  H03K17/691 ,  H04L12/54

公开(公告)号：US3160886A

公开(公告)日：1964-12-08

申请号：US26730163

申请日：1963-03-22

Applicant: CUTLER HAMMER INC

Inventor： BATTLE JR FREDERICK H

IPC: G01S1/02 ,  G01S1/64 ,  G01S19/05 ,  G01S19/23 ,  G01S19/25

CPC classification number: G01S1/64 ,  G01S1/02

公开(公告)号：US3159837A

公开(公告)日：1964-12-01

申请号：US1523360

申请日：1960-03-15

Applicant: ITT GILFILLAN INC

Inventor： ALSTYNE ALVIN GUY VAN ,  BURTON CUTLER ,  DAVIS DONOVAN C

IPC: G01S1/64

CPC classification number: G01S1/64

公开(公告)号：US11570580B2

公开(公告)日：2023-01-31

申请号：US17178888

申请日：2021-02-18

Applicant: CenTrak, Inc.

Inventor： Israel Amir

IPC: H04W4/029 ,  H04W4/02 ,  H04W4/33 ,  H04W4/80 ,  H04W64/00 ,  H04W84/18 ,  G01S1/64 ,  G01S1/68 ,  G01S1/72 ,  G01S1/74 ,  G01S5/02 ,  G01S5/14

Abstract: A system and methods for estimating the location of a mobile device are disclosed. In accordance with one embodiment, a mobile device located within a first corridor of a building receives (1) a first wireless electromagnetic signal and a first ultrasound signal from a first beacon located in the first corridor, (2) a second wireless electromagnetic signal and a second ultrasound signal from a second beacon located in the first corridor, and (3) a third wireless electromagnetic signal from a third beacon located in a second corridor of the building. The first wireless electromagnetic signal, the first ultrasound signal, the second wireless electromagnetic signal, and the second ultrasound signal are used to estimate a location of the mobile device.

公开(公告)号：US3229218A

公开(公告)日：1966-01-11

申请号：US26360563

申请日：1963-03-07

Applicant: RCA CORP

Inventor： SICKLES II LOUIS ,  MALCHOW MAX E

IPC: G01S1/64 ,  H01L27/088 ,  H01L29/00 ,  H03F3/193 ,  H03G1/00 ,  H03H9/36 ,  H03H11/24 ,  H03K17/691 ,  H04L12/54 ,  H04L13/08

CPC classification number: H04L13/08 ,  G01S1/64 ,  H01L27/088 ,  H01L29/00 ,  H03F3/193 ,  H03G1/0029 ,  H03H9/36 ,  H03K17/691 ,  H04L12/54

公开(公告)号：US3157877A

公开(公告)日：1964-11-17

申请号：US12392861

申请日：1961-06-28

Applicant: CUTLER HAMMER INC

Inventor： TATZ ABRAHAM ,  BATTLE FREDERICK HUGH JR

IPC: G01S1/02 ,  G01S1/64 ,  G01S5/08 ,  G01S19/15 ,  G05D1/06 ,  H03M1/00

CPC classification number: G05D1/0661 ,  G01S1/022 ,  G01S1/64 ,  G01S5/08

公开(公告)号：US3089138A

公开(公告)日：1963-05-07

申请号：US14500061

申请日：1961-10-13

Applicant: CUTLER HAMMER INC

Inventor： BATTLE JR FREDERICK H

IPC: G01S1/64 ,  H01L27/088 ,  H01L29/00 ,  H03F3/193 ,  H03G1/00 ,  H03H9/36 ,  H03H11/24 ,  H03K17/691

CPC classification number: H03K17/691 ,  G01S1/64 ,  H01L27/088 ,  H01L29/00 ,  H03F3/193 ,  H03G1/0029 ,  H03H9/36 ,  H03H11/245