G01C1/00	7	Measuring angles	G01C1/00	G01C1/00		3504
G01C1/02	8	Theodolites	G01C1/02	G01C1/02		1511
G01C1/04	9	combined with cameras	G01C1/04	G01C1/04		217
G01C1/06	9	Arrangements for reading scales	G01C1/06	G01C1/06		298
G01C1/08	8	Sextants	G01C1/08	G01C1/08		236
G01C1/10	9	including an artificial horizon (G01C1/14 takes precedence)	G01C1/10	G01C1/10		166
G01C1/12	10	with a stabilised mirror	G01C1/12	G01C1/12		11
G01C1/14	9	Periscopic sextants	G01C1/14	G01C1/14		3
G01C3/00	7	Measuring distances in line of sight; Optical rangefinders (tapes, chains or wheels for measuring length G01B3/00; active triangulation systems, i.e. using the transmission and reflection of electromagnetic waves other than radio waves, G01S17/48)	G01C3/00	G01C3/00		2229
G01C3/02	8	Details	G01C3/02	G01C3/02		1278
G01C3/04	9	Adaptation of rangefinders for combination with telescopes or binoculars	G01C3/04	G01C3/04		300
G01C3/06	9	Use of electric means to obtain final indication	G01C3/06	G01C3/06		1289
G01C3/08	10	Use of electric radiation detectors	G01C3/08	G01C3/08		1746
G01C3/085	11	{with electronic parallax measurement}	G01C3/08	G01C3/08		379
G01C3/10	8	using a parallactic triangle with variable angles and a base of fixed length in the observation station, e.g. in the instrument	G01C3/10	G01C3/10		655
G01C3/12	9	with monocular observation at a single point, e.g. coincidence type (G01C3/20 takes precedence)	G01C3/12	G01C3/12		438
G01C3/14	9	with binocular observation at a single point, e.g. stereoscopic type (G01C3/20 takes precedence)	G01C3/14	G01C3/14		307
G01C3/16	10	Measuring marks	G01C3/16	G01C3/16		117
G01C3/18	9	with one observation point at each end of the base (G01C3/20 takes precedence)	G01C3/18	G01C3/18		150
G01C3/20	9	with adaptation to the measurement of the height of an object	G01C3/20	G01C3/20		83
G01C3/22	8	using a parallactic triangle with variable angles and a base of fixed length at, near, or formed by the object	G01C3/22	G01C3/22		340
G01C3/24	8	using a parallactic triangle with fixed angles and a base of variable length in the observation station, e.g. in the instrument	G01C3/24	G01C3/24		108
G01C3/26	8	using a parallactic triangle with fixed angles and a base of variable length, at, near, or formed by the object	G01C3/26	G01C3/26		42
G01C3/28	9	with provision for reduction of the distance into the horizontal plane	G01C3/28	G01C3/28		16
G01C3/30	10	with adaptation to the measurement of the height of an object, e.g. tacheometers	G01C3/30	G01C3/30		223
G01C3/32	8	by focusing the object, e.g. on a ground glass screen	G01C3/32	G01C3/32		237
G01C5/00	7	Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors&apos; levels (G01C3/20, G01C3/30 take precedence)	G01C5/00	G01C5/00		7033
G01C5/005	8	{altimeters for aircraft (G01C5/02, G01C5/06 take precedence)}	G01C5/00	G01C5/00		749
G01C5/02	8	involving automatic stabilisation of the line of sight	G01C5/02	G01C5/02		157
G01C5/04	8	Hydrostatic levelling, i.e. by flexibly interconnected liquid containers at separated points	G01C5/04	G01C5/04		874
G01C5/06	8	by using barometric means	G01C5/06	G01C5/06		1225
G01C7/00	7	Tracing profiles (by photogrammetry or videogrammetry G01C11/00)	G01C7/00	G01C7/00		344
G01C7/02	8	of land surfaces	G01C7/02	G01C7/02		454
G01C7/04	9	involving a vehicle which moves along the profile to be traced	G01C7/04	G01C7/04		815
G01C7/06	8	of cavities, e.g. tunnels	G01C7/06	G01C7/06		761
G01C9/00	7	Measuring inclination, e.g. by clinometers, by levels	G01C9/00	G01C9/00		6339
G01C9/005	8	{specially adapted for use in aircraft}	G01C9/00	G01C9/00		137
G01C9/02	8	Details	G01C9/02	G01C9/02		3015
G01C9/04	9	Transmission means between sensing element and final indicator for giving an enlarged reading	G01C9/04	G01C9/04		274
G01C9/06	9	Electric or photoelectric indication or reading means	G01C9/06	G01C9/06		2302
G01C2009/062	10	{capacitive}	G01C9/06	G01C9/06		99
G01C2009/064	10	{inductive}	G01C9/06	G01C9/06		58
G01C2009/066	10	{optical}	G01C9/06	G01C9/06		622
G01C2009/068	10	{resistive}	G01C9/06	G01C9/06		137
G01C9/08	9	Means for compensating acceleration forces due to movement of instrument	G01C9/08	G01C9/08		240
G01C9/10	8	by using rolling bodies {, e.g. spheres, cylinders, mercury droplets}	G01C9/10	G01C9/10		695
G01C2009/102	9	{cylinders}	G01C9/10	G01C9/10		30
G01C2009/105	9	{mercury droplets}	G01C9/10	G01C9/10		29
G01C2009/107	9	{spheres}	G01C9/10	G01C9/10		242
G01C9/12	8	by using a single pendulum (plumb lines G01C15/10)	G01C9/12	G01C9/12		1985
G01C9/14	9	movable in more than one direction	G01C9/14	G01C9/14		318
G01C9/16	8	by using more than one pendulum	G01C9/16	G01C9/16		119
G01C9/18	8	by using liquids	G01C9/18	G01C9/18		678
G01C2009/182	9	{conductive}	G01C9/18	G01C9/18		153
G01C2009/185	9	{dielectric}	G01C9/18	G01C9/18		35
G01C2009/187	9	{magnetic, e.g. ferromagnetic}	G01C9/18	G01C9/18		30
G01C9/20	9	the indication being based on the inclination of the surface of a liquid relative to its container	G01C9/20	G01C9/20		631
G01C9/22	10	with interconnected containers in fixed relation to each other	G01C9/22	G01C9/22		290
G01C9/24	9	in closed containers partially filled with liquid so as to leave a gas bubble	G01C9/24	G01C9/24		1480
G01C9/26	10	Details	G01C9/26	G01C9/26		902
G01C9/28	11	Mountings	G01C9/28	G01C9/28		1762
G01C9/30	11	Means for adjusting dimensions of bubble	G01C9/30	G01C9/30		60
G01C9/32	11	Means for facilitating the observation of the position of the bubble, e.g. illuminating means	G01C9/32	G01C9/32		513
G01C9/34	10	of the tubular type, i.e. for indicating the level in one direction only	G01C9/34	G01C9/34		750
G01C9/36	10	of the spherical type, i.e. for indicating the level in all directions	G01C9/36	G01C9/36		241
G01C11/00	7	Photogrammetry or videogrammetry, e.g. stereogrammetry; Photographic surveying	G01C11/00	G01C11/00		4938
G01C11/02	8	Picture taking arrangements specially adapted for photogrammetry or photographic surveying, e.g. controlling overlapping of pictures	G01C11/02	G01C11/02		3709
G01C11/025	9	{by scanning the object}	G01C11/02	G01C11/02		882
G01C11/04	8	Interpretation of pictures	G01C11/04	G01C11/04		2319
G01C11/06	9	by comparison of two or more pictures of the same area	G01C11/06	G01C11/06		1115
G01C11/08	10	the pictures not being supported in the same relative position as when they were taken	G01C11/08	G01C11/08		381
G01C11/10	11	using computers to control the position of the pictures	G01C11/10	G01C11/10		61
G01C11/12	10	the pictures being supported in the same relative position as when they were taken	G01C11/12	G01C11/12		150
G01C11/14	11	with optical projection (G01C11/26 takes precedence)	G01C11/14	G01C11/14		58
G01C11/16	12	in a common plane	G01C11/16	G01C11/16		15
G01C11/18	13	involving scanning means	G01C11/18	G01C11/18		16
G01C11/20	12	in separate planes	G01C11/20	G01C11/20		4
G01C11/22	11	with mechanical projection (G01C11/26 takes precedence)	G01C11/22	G01C11/22		2
G01C11/24	11	with optical-mechanical projection (G01C11/26 takes precedence)	G01C11/24	G01C11/24		7
G01C11/26	11	using computers to control the position of the pictures	G01C11/26	G01C11/26		32
G01C11/28	10	Special adaptation for recording picture point data, e.g. for profiles	G01C11/28	G01C11/28		106
G01C11/30	9	by triangulation	G01C11/30	G01C11/30		276
G01C11/32	10	Radial triangulation	G01C11/32	G01C11/32		18
G01C11/34	10	Aerial triangulation	G01C11/34	G01C11/34		249
G01C11/36	8	Videogrammetry, i.e. electronic processing of video signals {from a single source or } from different sources to give parallax or range information	G01C11/36	G01C11/36		654
G01C13/00	7	Surveying specially adapted to open water, e.g. sea, lake, river or canal (liquid level metering G01F)	G01C13/00	G01C13/00		2770
G01C13/002	8	{Measuring the movement of open water}	G01C13/00	G01C13/00		724
G01C13/004	9	{vertical movement}	G01C13/00	G01C13/00		393
G01C13/006	9	{horizontal movement}	G01C13/00	G01C13/00		271
G01C13/008	8	{measuring depth of open water}	G01C13/00	G01C13/00		1617
G01C15/00	7	Surveying instruments or accessories not provided for in groups G01C1/00&#160;-&#160;G01C13/00	G01C15/00	G01C15/00		8930
G01C15/002	8	{Active optical surveying means (optical plumbing G01C15/105)}	G01C15/00	G01C15/00		4321
G01C15/004	9	{Reference lines, planes or sectors}	G01C15/00	G01C15/00		1983
G01C15/006	10	{Detectors therefor}	G01C15/00	G01C15/00		431
G01C15/008	9	{combined with inclination sensor}	G01C15/00	G01C15/00		556
G01C15/02	8	Means for marking measuring points	G01C15/02	G01C15/02		1367
G01C15/04	9	Permanent marks; Boundary markers	G01C15/04	G01C15/04		471
G01C15/06	9	Surveyors&apos; staffs; Movable markers	G01C15/06	G01C15/06		1525
G01C15/08	10	Plumbing or registering staffs or markers over ground marks	G01C15/08	G01C15/08		537
G01C15/10	8	Plumb lines	G01C15/10	G01C15/10		931
G01C15/105	9	{Optical plumbing}	G01C15/10	G01C15/10		396
G01C15/12	8	Instruments for setting out fixed angles, e.g. right angles	G01C15/12	G01C15/12		737
G01C15/14	8	Artificial horizons	G01C15/14	G01C15/14		111
G01C17/00	7	Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes (using gyroscopic effect G01C19/00)	G01C17/00	G01C17/00		1695
G01C17/02	8	Magnetic compasses	G01C17/02	G01C17/02		275
G01C17/04	9	with north-seeking magnetic elements, e.g. needles	G01C17/04	G01C17/04		348
G01C17/06	10	Suspending magnetic elements	G01C17/06	G01C17/06		51
G01C17/08	11	by flotation	G01C17/08	G01C17/08		58
G01C17/10	10	Comparing observed direction with north indication	G01C17/10	G01C17/10		40
G01C17/12	11	by sighting means, e.g. for surveyors&apos; compasses	G01C17/12	G01C17/12		230
G01C17/14	11	by reference marks, e.g. for ships&apos; compasses	G01C17/14	G01C17/14		56
G01C17/16	11	by clinometers, e.g. for determining dip or strike of geological strata	G01C17/16	G01C17/16		35
G01C17/18	10	Supporting or suspending compasses, e.g. by gimbal, by flotation	G01C17/18	G01C17/18		120
G01C17/20	10	Observing the compass card or needle	G01C17/20	G01C17/20		108
G01C17/22	11	by projection	G01C17/22	G01C17/22		11
G01C17/24	11	Illumination	G01C17/24	G01C17/24		84
G01C17/26	11	using electric pick-offs for transmission to final indicator, e.g. photocell	G01C17/26	G01C17/26		271
G01C17/28	9	Electromagnetic compasses (with north seeking magnetic elements and having electric pick-offs G01C17/26)	G01C17/28	G01C17/28		492
G01C17/30	10	Earth-inductor compasses	G01C17/30	G01C17/30		634
G01C17/32	10	Electron compasses	G01C17/32	G01C17/32		278
G01C17/34	8	Sun- or astro-compasses	G01C17/34	G01C17/34		192
G01C17/36	8	Repeaters for remote indication of readings of a master compass	G01C17/36	G01C17/36		110
G01C17/38	8	Testing, calibrating, or compensating of compasses	G01C17/38	G01C17/38		1405
G01C19/00	7	Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects	G01C19/00	G01C19/00		1693
G01C19/005	8	{Measuring angular rate using gyroscopic effects}	G01C19/00	G01C19/00		188
G01C19/02	8	Rotary gyroscopes	G01C19/02	G01C19/02		551
G01C19/025	9	{Gyroscopes functioning for short periods}	G01C19/02	G01C19/02		141
G01C19/04	9	Details	G01C19/04	G01C19/04		497
G01C19/06	10	Rotors	G01C19/06	G01C19/06		100
G01C19/065	11	{Means for measuring or controlling of rotors&apos; angular velocity}	G01C19/06	G01C19/06		108
G01C19/08	11	electrically driven (G01C19/14 takes precedence)	G01C19/08	G01C19/08		153
G01C19/10	12	Power supply	G01C19/10	G01C19/10		65
G01C19/12	11	fluid driven (G01C19/14 takes precedence)	G01C19/12	G01C19/12		56
G01C19/14	11	Fluid rotors	G01C19/14	G01C19/14		134
G01C19/16	10	Suspensions; Bearings	G01C19/16	G01C19/16		279
G01C19/18	11	providing movement of rotor with respect to its rotational axes (G01C19/20, G01C19/24 take precedence)	G01C19/18	G01C19/18		65
G01C19/20	11	in fluid	G01C19/20	G01C19/20		218
G01C19/22	11	torsional	G01C19/22	G01C19/22		134
G01C19/24	11	using magnetic or electrostatic fields	G01C19/24	G01C19/24		170
G01C19/26	10	Caging, i.e. immobilising moving parts, e.g. for transport	G01C19/26	G01C19/26		209
G01C19/28	10	Pick-offs, i.e. devices for taking-off an indication of the displacement of the rotor axis	G01C19/28	G01C19/28		359
G01C19/30	10	Erection devices, i.e. devices for restoring rotor axis to a desired position (for instrument indicating the vertical G01C19/46)	G01C19/30	G01C19/30		231
G01C19/32	10	Indicating or recording means specially adapted for rotary gyroscopes	G01C19/32	G01C19/32		225
G01C19/34	9	for indicating a direction in the horizontal plane, e.g. directional gyroscopes	G01C19/34	G01C19/34		209
G01C19/36	10	with north-seeking action by magnetic means, e.g. gyromagnetic compasses	G01C19/36	G01C19/36		256
G01C19/38	10	with north-seeking action by other than magnetic means, e.g. gyrocompasses using earth&apos;s rotation	G01C19/38	G01C19/38		1636
G01C19/40	9	for control by signals from a master compass, i.e. repeater compasses	G01C19/40	G01C19/40		110
G01C19/42	9	for indicating rate of turn; for integrating rate of turn	G01C19/42	G01C19/42		554
G01C19/44	9	for indicating the vertical	G01C19/44	G01C19/44		892
G01C19/46	10	Erection devices for restoring rotor axis to a desired position	G01C19/46	G01C19/46		43
G01C19/48	11	operating by electrical means (G01C19/54 takes precedence)	G01C19/48	G01C19/48		36
G01C19/50	11	operating by mechanical means (G01C19/54 takes precedence)	G01C19/50	G01C19/50		52
G01C19/52	11	operating by fluid means (G01C19/54 takes precedence)	G01C19/52	G01C19/52		29
G01C19/54	11	with correction for acceleration forces due to movement of instrument	G01C19/54	G01C19/54		39
G01C19/56	8	Turn-sensitive devices using vibrating masses, e.g. vibratory angular rate sensors based on Coriolis forces	G01C19/56	G01C19/56		1451
G01C19/5607	9	using vibrating tuning forks (double-ended tuning forks using planar vibrating masses suspended at opposite ends G01C19/5719)	G01C19/5607	G01C19/5607		489
G01C19/5614	10	Signal processing	G01C19/5614	G01C19/5614		155
G01C19/5621	10	the devices involving a micromechanical structure	G01C19/5621	G01C19/5621		263
G01C19/5628	10	Manufacturing; Trimming; Mounting; Housings	G01C19/5628	G01C19/5628		169
G01C19/5635	9	using vibrating wires or strings	G01C19/5635	G01C19/5635		32
G01C19/5642	9	using vibrating bars or beams	G01C19/5642	G01C19/5642		227
G01C19/5649	10	Signal processing	G01C19/5649	G01C19/5649		184
G01C19/5656	10	the devices involving a micromechanical structure	G01C19/5656	G01C19/5656		371
G01C19/5663	10	Manufacturing; Trimming; Mounting; Housings	G01C19/5663	G01C19/5663		218
G01C19/567	9	using the phase shift of a vibration node or antinode	G01C19/567	G01C19/567		83
G01C19/5677	10	of essentially two-dimensional [2D] vibrators, e.g. ring-shaped vibrators	G01C19/5677	G01C19/5677		99
G01C19/5684	11	the devices involving a micromechanical structure	G01C19/5684	G01C19/5684		286
G01C19/5691	10	of essentially three-dimensional [3D] vibrators, e.g. wine glass-type vibrators	G01C19/5691	G01C19/5691		455
G01C19/5698	9	using acoustic waves, e.g. surface acoustic wave gyros	G01C19/5698	G01C19/5698		93
G01C19/5705	9	using masses driven in reciprocating rotary motion about an axis	G01C19/5705	G01C19/5705		84
G01C19/5712	10	the devices involving a micromechanical structure	G01C19/5712	G01C19/5712		592
G01C19/5719	9	using planar vibrating masses driven in a translation vibration along an axis	G01C19/5719	G01C19/5719		631
G01C19/5726	10	Signal processing	G01C19/5726	G01C19/5726		312
G01C19/5733	10	Structural details or topology	G01C19/5733	G01C19/5733		290
G01C19/574	11	the devices having two sensing masses in anti-phase motion	G01C19/574	G01C19/574		287
G01C19/5747	12	each sensing mass being connected to a driving mass, e.g. driving frames	G01C19/5747	G01C19/5747		332
G01C19/5755	11	the devices having a single sensing mass	G01C19/5755	G01C19/5755		208
G01C19/5762	12	the sensing mass being connected to a driving mass, e.g. driving frames	G01C19/5762	G01C19/5762		145
G01C19/5769	10	Manufacturing; Mounting; Housings	G01C19/5769	G01C19/5769		236
G01C19/5776	9	Signal processing not specific to any of the devices covered by groups G01C19/5607&#160;-&#160;G01C19/5719	G01C19/5776	G01C19/5776		1007
G01C19/5783	9	Mountings or housings not specific to any of the devices covered by groups G01C19/5607&#160;-&#160;G01C19/5719	G01C19/5783	G01C19/5783		467
G01C19/58	8	Turn-sensitive devices without moving masses	G01C19/58	G01C19/58		476
G01C19/60	9	Electronic or nuclear magnetic resonance gyrometers	G01C19/60	G01C19/60		168
G01C19/62	10	with optical pumping	G01C19/62	G01C19/62		160
G01C19/64	9	Gyrometers using the Sagnac effect, i.e. rotation-induced shifts between counter-rotating electromagnetic beams	G01C19/64	G01C19/64		332
G01C19/66	10	Ring laser gyrometers	G01C19/66	G01C19/66		309
G01C19/661	11	{details}	G01C19/66	G01C19/66		327
G01C19/662	12	{signal readout; dither compensators}	G01C19/66	G01C19/66		121
G01C19/664	13	{means for removing the dither signal}	G01C19/66	G01C19/66		40
G01C19/665	12	{control of the cavity }	G01C19/66	G01C19/66		130
G01C19/667	11	{using a multioscillator ring laser}	G01C19/66	G01C19/66		82
G01C19/668	11	{Assemblies for measuring along different axes, e.g. triads}	G01C19/66	G01C19/66		31
G01C19/68	11	Lock-in prevention	G01C19/68	G01C19/68		85
G01C19/70	12	by mechanical means	G01C19/70	G01C19/70		134
G01C19/72	10	with counter-rotating light beams in a passive ring, e.g. fibre laser gyrometers	G01C19/72	G01C19/72		1084
G01C19/721	11	{Details, e.g. optical or electronical details}	G01C19/72	G01C19/72		1030
G01C19/722	12	{of the mechanical construction}	G01C19/72	G01C19/72		398
G01C19/723	11	{Heterodyning fibre optic gyrometers}	G01C19/72	G01C19/72		32
G01C19/725	11	{using nxn optical couplers, e.g. 3x3 couplers}	G01C19/72	G01C19/72		161
G01C19/726	11	{Phase nulling gyrometers, i.e. compensating the Sagnac phase shift in a closed loop system}	G01C19/72	G01C19/72		211
G01C19/727	11	{using a passive ring resonator}	G01C19/72	G01C19/72		255
G01C19/728	11	{Assemblies for measuring along different axes, e.g. triads}	G01C19/72	G01C19/72		99
G01C21/00	7	Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00(measuring distance traversed on the ground by a vehicle G01C22/00; control of position, course, altitude or attitude of vehicles G05D1/00; traffic control systems for road vehicles involving transmission of navigation instructions to the vehicle G08G1/0968)	G01C21/00	G01C21/00		4106
G01C21/005	8	{with correlation of navigation data from several sources, e.g. map or contour matching (G01C21/30 takes precedence)}	G01C21/00	G01C21/00		6708
G01C21/02	8	by astronomical means (G01C21/24, G01C21/26 take precedence)	G01C21/02	G01C21/02		1120
G01C21/025	9	{with the use of startrackers}	G01C21/02	G01C21/02		668
G01C21/04	8	by terrestrial means (G01C21/24, G01C21/26 take precedence)	G01C21/04	G01C21/04		367
G01C21/06	9	involving measuring of drift angle; involving correction for drift	G01C21/06	G01C21/06		149
G01C21/08	9	involving use of the magnetic field of the earth	G01C21/08	G01C21/08		1239
G01C21/10	8	by using measurements of speed or acceleration (G01C21/24, G01C21/26 take precedence)	G01C21/10	G01C21/10		590
G01C21/12	9	executed aboard the object being navigated; Dead reckoning	G01C21/12	G01C21/12		917
G01C21/14	10	by recording the course traversed by the object (G01C21/16 takes precedence)	G01C21/14	G01C21/14		369
G01C21/16	10	by integrating acceleration or speed, i.e. inertial navigation	G01C21/16	G01C21/16		3884
G01C21/165	11	{combined with non-inertial navigation instruments}	G01C21/16	G01C21/16		9034
G01C21/1652	12	{with ranging devices, e.g. LIDAR or RADAR}	G01C21/16	G01C21/16		2209
G01C21/1654	12	{with electromagnetic compass}	G01C21/16	G01C21/16		630
G01C21/1656	12	{with passive imaging devices, e.g. cameras}	G01C21/16	G01C21/16		2160
G01C21/166	11	{Mechanical, construction or arrangement details of inertial navigation systems}	G01C21/16	G01C21/16		867
G01C21/18	11	Stabilised platforms, e.g. by gyroscope	G01C21/18	G01C21/18		2671
G01C21/183	11	{Compensation of inertial measurements, e.g. for temperature effects}	G01C21/16	G01C21/18		1091
G01C21/185	12	{for gravity}	G01C21/16	G01C21/18		165
G01C21/188	12	{for accumulated errors, e.g. by coupling inertial systems with absolute positioning systems}	G01C21/16	G01C21/18		964
G01C21/20	8	Instruments for performing navigational calculations (G01C21/24, G01C21/26 take precedence)	G01C21/20	G01C21/20		20715
G01C21/203	9	{specially adapted for water-borne vessels}	G01C21/20	G01C21/20		2661
G01C21/206	9	{specially adapted for indoor navigation}	G01C21/20	G01C21/20		7233
G01C21/22	9	Plotting boards	G01C21/22	G01C21/22		498
G01C21/24	8	specially adapted for cosmonautical navigation	G01C21/24	G01C21/24		1359
G01C21/26	8	specially adapted for navigation in a road network	G01C21/26	G01C21/26		5647
G01C21/265	9	{constructional aspects of navigation devices, e.g. housings, mountings, displays (G01C21/3688 takes precedence)}	G01C21/26	G01C21/26		857
G01C21/28	9	with correlation of data from several navigational instruments	G01C21/28	G01C21/28		3184
G01C21/30	10	Map- or contour-matching	G01C21/30	G01C21/30		4207
G01C21/32	11	Structuring or formatting of map data	G01C21/32	G01C21/32		3177
G01C21/34	9	Route searching; Route guidance	G01C21/34	G01C21/34		4525
G01C21/3407	10	{specially adapted for specific applications}	G01C21/34	G01C21/34		3556
G01C21/3415	11	{Dynamic re-routing, e.g. recalculating the route when the user deviates from calculated route or after detecting real-time traffic data or accidents}	G01C21/34	G01C21/34		4655
G01C21/3423	11	{Multimodal routing}	G01C21/34	G01C21/34		1124
G01C21/343	11	{Calculating itineraries (travelling salesman problem G06Q10/04; optimisation of routes G06Q10/047)}	G01C21/34	G01C21/34		3890
G01C21/3438	11	{Rendezvous; Ride sharing}	G01C21/34	G01C21/34		1742
G01C21/3446	10	{Details of route searching algorithms, e.g. Dijkstra, A*, arc-flags or using precalculated routes}	G01C21/34	G01C21/34		5168
G01C21/3453	10	{Special cost functions, i.e. other than distance or default speed limit of road segments}	G01C21/34	G01C21/34		1756
G01C21/3461	11	{Preferred or disfavoured areas, e.g. dangerous zones, toll or emission zones, intersections, manoeuvre types or segments such as motorways, toll roads or ferries}	G01C21/34	G01C21/34		3191
G01C21/3469	11	{Fuel consumption; Energy use; Emission aspects}	G01C21/34	G01C21/34		2748
G01C21/3476	11	{using point of interest [POI] information, e.g. a route passing visible POIs}	G01C21/34	G01C21/34		1564
G01C21/3484	11	{Personalized, e.g. from learned user behaviour or user-defined profiles}	G01C21/34	G01C21/34		2478
G01C21/3492	11	{employing speed data or traffic data, e.g. real-time or historical (traffic control systems for road vehicles involving transmission of navigation instructions to the vehicle G08G1/0968)}	G01C21/34	G01C21/34		4324
G01C21/36	10	Input/output arrangements for on-board computers	G01C21/36	G01C21/36		2557
G01C21/3602	11	{Input other than that of destination using image analysis, e.g. detection of road signs, lanes, buildings, real preceding vehicles using a camera}	G01C21/36	G01C21/36		1827
G01C21/3605	11	{Destination input or retrieval}	G01C21/36	G01C21/36		913
G01C21/3608	12	{using speech input, e.g. using speech recognition}	G01C21/36	G01C21/36		894
G01C21/3611	12	{using character input or menus, e.g. menus of POIs (character input methods in general G06F3/0233)}	G01C21/36	G01C21/36		596
G01C21/3614	12	{through interaction with a road map, e.g. selecting a POI icon on a road map}	G01C21/36	G01C21/36		526
G01C21/3617	12	{using user history, behaviour, conditions or preferences, e.g. predicted or inferred from previous use or current movement}	G01C21/36	G01C21/36		1300
G01C21/362	12	{received from an external device or application, e.g. PDA, mobile phone or calendar application}	G01C21/36	G01C21/36		1209
G01C21/3623	12	{using a camera or code reader, e.g. for optical or magnetic codes}	G01C21/36	G01C21/36		299
G01C21/3626	11	{Details of the output of route guidance instructions (traffic control systems for road vehicles involving transmission of navigation instructions to the vehicle G08G1/0968)}	G01C21/36	G01C21/36		1469
G01C21/3629	12	{Guidance using speech or audio output, e.g. text-to-speech (text to speech systems per seG10L13/00)}	G01C21/36	G01C21/36		1828
G01C21/3632	12	{Guidance using simplified or iconic instructions, e.g. using arrows (G01C21/365 takes precedence)}	G01C21/36	G01C21/36		886
G01C21/3635	12	{Guidance using 3D or perspective road maps}	G01C21/36	G01C21/36		510
G01C21/3638	13	{including 3D objects and buildings (three dimensional [3D] modelling, e.g. data description of 3D objects G06T17/00; geographic models G06T17/05)}	G01C21/36	G01C21/36		596
G01C21/3641	12	{Personalized guidance, e.g. limited guidance on previously travelled routes}	G01C21/36	G01C21/36		573
G01C21/3644	12	{Landmark guidance, e.g. using POIs or conspicuous other objects}	G01C21/36	G01C21/36		633
G01C21/3647	12	{Guidance involving output of stored or live camera images or video streams}	G01C21/36	G01C21/36		1144
G01C21/365	12	{Guidance using head up displays or projectors, e.g. virtual vehicles or arrows projected on the windscreen or on the road itself}	G01C21/36	G01C21/36		1106
G01C21/3652	12	{Guidance using non-audiovisual output, e.g. tactile, haptic or electric stimuli}	G01C21/36	G01C21/36		369
G01C21/3655	12	{Timing of guidance instructions}	G01C21/36	G01C21/36		513
G01C21/3658	12	{Lane guidance}	G01C21/36	G01C21/36		1304
G01C21/3661	12	{Guidance output on an external device, e.g. car radio}	G01C21/36	G01C21/36		407
G01C21/3664	11	{Details of the user input interface, e.g. buttons, knobs or sliders, including those provided on a touch screen; remote controllers; input using gestures}	G01C21/36	G01C21/36		1230
G01C21/3667	11	{Display of a road map (G01C21/3614 takes precedence; guidance using 3D or perspective road maps G01C21/3635)}	G01C21/36	G01C21/36		1805
G01C21/367	12	{Details, e.g. road map scale, orientation, zooming, illumination, level of detail, scrolling of road map or positioning of current position marker}	G01C21/36	G01C21/36		2095
G01C21/3673	12	{Labelling using text of road map data items, e.g. road names, POI names}	G01C21/36	G01C21/36		490
G01C21/3676	12	{Overview of the route on the road map}	G01C21/36	G01C21/36		798
G01C21/3679	11	{Retrieval, searching and output of POI information, e.g. hotels, restaurants, shops, filling stations, parking facilities (G01C21/3611 takes precedence)}	G01C21/36	G01C21/36		1946
G01C21/3682	12	{output of POI information on a road map (G01C21/3614, G01C21/3685 take precedence)}	G01C21/36	G01C21/36		1362
G01C21/3685	12	{the POI&apos;s being parking facilities}	G01C21/36	G01C21/36		787
G01C21/3688	11	{Systems comprising multiple parts or multiple output devices (not client-server), e.g. detachable faceplates, key fobs or multiple output screens}	G01C21/36	G01C21/36		625
G01C21/3691	11	{Retrieval, searching and output of information related to real-time traffic, weather, or environmental conditions (arrangements for giving variable traffic instructions G08G1/09)}	G01C21/36	G01C21/36		1969
G01C21/3694	12	{Output thereof on a road map}	G01C21/36	G01C21/36		620
G01C21/3697	11	{Output of additional, non-guidance related information, e.g. low fuel level (G01C21/3679 takes precedence)}	G01C21/36	G01C21/36		3025
G01C21/38	8	{Electronic maps specially adapted for navigation; Updating thereof}	G01C21/00	G01C21/38		473
G01C21/3804	9	{Creation or updating of map data}	G01C21/00	G01C21/3804		2519
G01C21/3807	10	{characterised by the type of data}	G01C21/00	G01C21/3807		910
G01C21/3811	11	{Point data, e.g. Point of Interest [POI]}	G01C21/00	G01C21/3811		1313
G01C21/3815	11	{Road data}	G01C21/00	G01C21/3815		1883
G01C21/3819	12	{Road shape data, e.g. outline of a route}	G01C21/00	G01C21/3819		654
G01C21/3822	12	{Road feature data, e.g. slope data}	G01C21/00	G01C21/3822		784
G01C21/3826	11	{Terrain data}	G01C21/00	G01C21/3826		422
G01C21/383	11	{Indoor data}	G01C21/00	G01C21/383		836
G01C21/3833	10	{characterised by the source of data}	G01C21/00	G01C21/3833		365
G01C21/3837	11	{Data obtained from a single source}	G01C21/00	G01C21/3837		889
G01C21/3841	11	{Data obtained from two or more sources, e.g. probe vehicles}	G01C21/00	G01C21/3841		2513
G01C21/3844	11	{Data obtained from position sensors only, e.g. from inertial navigation}	G01C21/00	G01C21/3844		527
G01C21/3848	11	{Data obtained from both position sensors and additional sensors}	G01C21/00	G01C21/3848		1425
G01C21/3852	11	{Data derived from aerial or satellite images}	G01C21/00	G01C21/3852		376
G01C21/3856	11	{Data obtained from user input}	G01C21/00	G01C21/3856		152
G01C21/3859	10	{Differential updating map data}	G01C21/00	G01C21/3859		794
G01C21/3863	9	{Structures of map data}	G01C21/00	G01C21/3863		271
G01C21/3867	10	{Geometry of map features, e.g. shape points, polygons or for simplified maps}	G01C21/00	G01C21/3867		682
G01C21/387	10	{Organisation of map data, e.g. version management or database structures}	G01C21/00	G01C21/387		709
G01C21/3874	11	{Structures specially adapted for data searching and retrieval}	G01C21/00	G01C21/3874		241
G01C21/3878	11	{Hierarchical structures, e.g. layering}	G01C21/00	G01C21/3878		486
G01C21/3881	11	{Tile-based structures}	G01C21/00	G01C21/3881		630
G01C21/3885	9	{Transmission of map data to client devices; Reception of map data by client devices}	G01C21/00	G01C21/3885		581
G01C21/3889	10	{Transmission of selected map data, e.g. depending on route}	G01C21/00	G01C21/3889		543
G01C21/3893	10	{Transmission of map data from distributed sources, e.g. from roadside stations}	G01C21/00	G01C21/3893		90
G01C21/3896	10	{Transmission of map data from central databases}	G01C21/00	G01C21/3896		600
G01C22/00	7	Measuring distance traversed on the ground by vehicles, persons, animals or other moving solid bodies, e.g. using odometers, using pedometers	G01C22/00	G01C22/00		3059
G01C22/002	8	{for cycles}	G01C22/00	G01C22/00		219
G01C22/004	8	{for golf carts }	G01C22/00	G01C22/00		61
G01C22/006	8	{Pedometers}	G01C22/00	G01C22/00		1884
G01C22/008	8	{for skates}	G01C22/00	G01C22/00		38
G01C22/02	8	by conversion into electric waveforms and subsequent integration, e.g. using tachometer generator {(G01C22/002, G01C22/004, G01C22/006 take precedence)}	G01C22/02	G01C22/02		644
G01C22/025	9	{Differential odometers}	G01C22/02	G01C22/02		110
G01C23/00	7	Combined instruments indicating more than one navigational value, e.g. for aircraft; Combined measuring devices for measuring two or more variables of movement, e.g. distance, speed or acceleration	G01C23/00	G01C23/00		3023
G01C23/005	8	{Flight directors (indicating arrangements specially adapted for rotary gyroscopes G01C19/32)}	G01C23/00	G01C23/00		1257
G01C25/00	7	Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass (testing, calibrating or compensating compasses G01C17/38)	G01C25/00	G01C25/00		7376
G01C25/005	8	{initial alignment, calibration or starting-up of inertial devices}	G01C25/00	G01C25/00		5786
