US5990676A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for detection of a moving speed of a mobile terminal in mobile communication
Assignee: NEC Corp
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Filing: 1998-01-26
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Granted: 1999-11-23
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Expires: 2018-01-26
Abstract
Abstract In accordance with the present invention, there is provided a method and apparatus for detecting a moving speed of a mobile terminal in a mobile communication utilizing time division multiple access system, wherein a measurement is made for a variation in delay of a burst radiowave received from the mobile terminal with reference to a transmission burst signal before a calculation of a moving speed of the mobile terminal is made on the basis of the measured variation in the delay.
Inventors
- 👤 Tsuguo Hori
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:57
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/74
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
320 words
An apparatus for detecting a moving speed of a mobile terminal in a mobile communication utilizing time division multiple access system, said apparatus comprising: a burst timing generation circuit for generating a timing signal of a transmission burst signal in accordance with signals from a control section; a transmission burst signal generation circuit being electrically connected to the burst timing generation circuit for receipt of the generated timing signal from the burst timing generation circuit so as to generate a transmission burst signal which is synchronized with the received timing signal; a modulation/amplification circuit being electrically connected to the transmission burst signal generation circuit for receipt of the transmission burst signal from the transmission burst signal generation circuit so as to modulate the received transmission burst signal and then amplify the modulated transmission burst signal; a first antenna being electrically connected to the modulation/amplification circuit for receipt of the modulated and amplified transmission burst signal from the modulation/amplification circuit so as to transmit the modulated and amplified transmission burst signal; a second antenna for receipt of the modulated and amplified transmission burst signal from the first antenna; a receiving circuit being electrically connected to the second antenna for receipt of the received transmission burst signal from the second antenna in order to demodulate the received transmission burst signal; a delay detection circuit being electrically connected to the receiving circuit for receipt of the demodulated transmission burst signal from the receiving circuit so as to detect a delay of a burst signal from the demodulated transmission burst signal received and a moving speed calculation circuit being electrically connected to the delay detection circuit for receipt of the delay of the burst signal from the transmission burst signal from the delay detection circuit in order to calculate a moving speed of the mobile terminal on the basis of variation in the detected delay of the burst signal from the transmission burst signal.
Claim 2
Independent Claim
320 words
An apparatus for detecting a moving speed of a mobile terminal in a mobile communication utilizing time division multiple access system, said apparatus comprising: a burst timing generation circuit for generating a timing signal of a transmission burst signal in accordance with signals from a control section; a transmission burst signal generation circuit being electrically connected to the burst timing generation circuit for receipt of the generated timing signal from the burst timing generation circuit so as to generate a transmission burst signal which is synchronized with the received timing signal; a modulation/amplification circuit being electrically connected to the transmission burst signal generation circuit for receipt of the transmission burst signal from the transmission burst signal generation circuit so as to modulate the received transmission burst signal and then amplify the modulated transmission burst signal; a first antenna being electrically connected to the modulation/amplification circuit for receipt of the modulated and amplified transmission burst signal from the modulation/amplification circuit so as to transmit the modulated and amplified transmission burst signal; a second antenna for receipt of the modulated and amplified transmission burst signal from the first antenna; a receiving circuit being electrically connected to the second antenna for receipt of the received transmission burst signal from the second antenna in order to demodulate the received transmission burst signal; a delay detection circuit being electrically connected to the receiving circuit for receipt of the demodulated transmission burst signal from the receiving circuit so as to detect a delay of a burst signal from the demodulated transmission burst signal received and a moving speed calculation circuit being electrically connected to the delay detection circuit for receipt of the delay of the burst signal from the transmission burst signal from the delay detection circuit in order to calculate a moving speed of the mobile terminal on the basis of variation in the detected delay of the burst signal from the transmission burst signal.
Claim 3
Independent Claim
320 words
An apparatus for detecting a moving speed of a mobile terminal in a mobile communication utilizing time division multiple access system, said apparatus comprising: a burst timing generation means for generating a timing signal of a transmission burst signal in accordance with signals from a control section; a transmission burst signal generation means being electrically connected to the burst timing generation means for receipt of the generated timing signal from the burst timing generation means so as to generate a transmission burst signal which is synchronized with the received timing signal; a modulation/amplification means being electrically connected to the transmission burst signal generation means for receipt of the transmission burst signal from the transmission burst signal generation means so as to modulate the received transmission burst signal and then amplify the modulated transmission burst signal; a first antenna being electrically connected to the modulation/amplification means for receipt of the modulated and amplified transmission burst signal from the modulation/amplification means so as to transmit the modulated and amplified transmission burst signal; a second antenna for receipt of the modulated and amplified transmission burst signal from the first antenna; a receiving means being electrically connected to the second antenna for receipt of the received transmission burst signal from the second antenna in order to demodulate the received transmission burst signal; a delay detection means being electrically connected to the receiving means for receipt of the demodulated transmission burst signal from the receiving means so as to detect a delay of a burst signal from the demodulated transmission burst signal received; and a moving speed calculation means being electrically connected to the delay detection means for receipt of the delay of the burst signal from the transmission burst signal from the delay detection means in order to calculate a moving speed of the mobile terminal on the basis of variation in the detected delay of the burst signal from the transmission burst signal.
Claim 4
Independent Claim
320 words
An apparatus for detecting a moving speed of a mobile terminal in a mobile communication utilizing time division multiple access system, said apparatus comprising: a burst timing generation means for generating a timing signal of a transmission burst signal in accordance with signals from a control section; a transmission burst signal generation means being electrically connected to the burst timing generation means for receipt of the generated timing signal from the burst timing generation means so as to generate a transmission burst signal which is synchronized with the received timing signal; a modulation/amplification means being electrically connected to the transmission burst signal generation means for receipt of the transmission burst signal from the transmission burst signal generation means so as to modulate the received transmission burst signal and then amplify the modulated transmission burst signal; a first antenna being electrically connected to the modulation/amplification means for receipt of the modulated and amplified transmission burst signal from the modulation/amplification means so as to transmit the modulated and amplified transmission burst signal; a second antenna for receipt of the modulated and amplified transmission burst signal from the first antenna; a receiving means being electrically connected to the second antenna for receipt of the received transmission burst signal from the second antenna in order to demodulate the received transmission burst signal; a delay detection means being electrically connected to the receiving means for receipt of the demodulated transmission burst signal from the receiving means so as to detect a delay of a burst signal from the demodulated transmission burst signal received; and a moving speed calculation means being electrically connected to the delay detection means for receipt of the delay of the burst signal from the transmission burst signal from the delay detection means in order to calculate a moving speed of the mobile terminal on the basis of variation in the detected delay of the burst signal from the transmission burst signal.
Claim 5
Independent Claim
70 words
A method of detecting a moving speed of a mobile terminal in a mobile communication utilizing time division multiple access system, wherein a measurement is made for a variation in delay of a burst radiowave received from the mobile terminal with reference to a transmission burst signal before a calculation of a moving speed of the mobile terminal is made on the basis of the measured variation in the delay.
Claim 6
Independent Claim
70 words
A method of detecting a moving speed of a mobile terminal in a mobile communication utilizing time division multiple access system, wherein a measurement is made for a variation in delay of a burst radiowave received from the mobile terminal with reference to a transmission burst signal before a calculation of a moving speed of the mobile terminal is made on the basis of the measured variation in the delay.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-11-22 | 2003-05-24 | 2003-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-11-22 | 2007-05-24 | 2007-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-11-22 | 2011-05-24 | 2011-11-23 | $7700.00 | Window Closed / Lapsed |