IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0136049
(2002-04-29)
|
발명자
/ 주소 |
- Boros, Tibor
- Barratt, Craig H.
- Uhlik, Christopher R.
- Trott, Mitchell D.
|
출원인 / 주소 |
|
대리인 / 주소 |
Blakely, Sokoloff, Taylor & Zafman LLP
|
인용정보 |
피인용 횟수 :
120 인용 특허 :
127 |
초록
▼
A calibration function for calibrating a base station can be determined using one or more remote terminals. In one embodiment of the present invention, determining the calibration function includes transmitting a calibration signal, using an array of antenna elements of a first radio, to a second ra
A calibration function for calibrating a base station can be determined using one or more remote terminals. In one embodiment of the present invention, determining the calibration function includes transmitting a calibration signal, using an array of antenna elements of a first radio, to a second radio, and receiving, at the first radio, a downlink spatial signature related signal from the second radio containing information related to a second radio downlink spatial signature, the information being calculated using the calibration signal. Then, a second radio downlink spatial signature may be determined using the downlink spatial signature related signal. Also, a second radio uplink spatial signature may be determined using an uplink spatial signature signal from the second radio to the first radio. The calibration function may then be determined using the second radio downlink spatial signature and the second radio uplink spatial signature. Furthermore, one embodiment of the present invention may include determining a third radio downlink weight vector for a third radio using a third radio uplink weight vector and the calibration function.
대표청구항
▼
A calibration function for calibrating a base station can be determined using one or more remote terminals. In one embodiment of the present invention, determining the calibration function includes transmitting a calibration signal, using an array of antenna elements of a first radio, to a second ra
A calibration function for calibrating a base station can be determined using one or more remote terminals. In one embodiment of the present invention, determining the calibration function includes transmitting a calibration signal, using an array of antenna elements of a first radio, to a second radio, and receiving, at the first radio, a downlink spatial signature related signal from the second radio containing information related to a second radio downlink spatial signature, the information being calculated using the calibration signal. Then, a second radio downlink spatial signature may be determined using the downlink spatial signature related signal. Also, a second radio uplink spatial signature may be determined using an uplink spatial signature signal from the second radio to the first radio. The calibration function may then be determined using the second radio downlink spatial signature and the second radio uplink spatial signature. Furthermore, one embodiment of the present invention may include determining a third radio downlink weight vector for a third radio using a third radio uplink weight vector and the calibration function. ng to claim 6 wherein said logic and control unit selectively activates said drive mechanism to move said cleaning member to said operative association location only when said reproduction apparatus is in a duplex copy cycle. 8. In association with a fuser assembly for an electrostatographic reproduction apparatus having an operating cycle for producing simplex copies and an oPerating cycle for producing duplex copies, said fuser assembly including a fuser member and a pressure member in operative association to apply heat and pressure to a marking particle image carried by a receiver member to fix such image to said receiver member as said receiver member is transported between said fuser member and pressure member, an applicator for applying release oil to said fuser member, and a pressure member cleaning member, a method for controlling the action of said pressure member cleaning member comprising the steps of: providing said pressure member cleaning member with a replaceable fabric layer; selectively activating said pressure member cleaning member to engage said pressure member so that said fabric layer serves to smooth out release oil on said pressure member and clean said pressure member; and when used up, replacing said pressure member cleaning member fabric layer. 9. The method for controlling the action of said pressure member cleaning member according to claim 8 wherein the step of selectively activating said pressure member cleaning member occurs only during the electrostatographic reproduction apparatus operating cycle for producing duplex copies. a driving spline; and at least one of a plurality of members to be driven which receives the driving force transmitted from the driving unit via said image carrier, wherein a follower spline is further attached onto a rotation shaft of said image carrier, said follower spline being positioned and connected to said driving spline so that tooth surfaces of the follower spline and said driving spline contact each other on opposite sides and gaps are formed between a tooth tip of the follower spline and said driving spline and between a tooth root of the follower spline and said driving spline, and by the driving force of the driving unit transmitted from said driving spline to said follower spline a plurality of members to be driven provided in the vicinity of said image carrier are driven. 10. An image forming apparatus comprising: an image carrier; a driving unit which transmits a driving force to the image carrier via a driving spline; and at least one of a plurality of members to be driven which receives the driving force transmitted from the driving unit via said image carrier, wherein a follower spline is further attached onto a rotation shaft of said image carrier, said follower spline being positioned and connected to said driving spline so that tooth surfaces of the follower spline and said driving spline contact each other on opposite sides, a root portion of said follower spline contacting a tooth tip of said driving spline, and a gap is formed between the tooth tip of the follower spline and said driving spline, and by the driving force of the driving unit transmitted from said driving spline to said follower spline, to said image carrier is rotated so as to rotate said plurality of the members to be driven provided in the vicinity of said image carrier. 11. The image forming apparatus according to claim 9 wherein a diameter of the tooth tip of said driving spline at a tip end in a rotation axial direction is set to be smaller than that at a root portion in the rotation axial direction and a step is formed therebetween. 12. The image forming apparatus according to claim 10 wherein a diameter of the tooth tip of said driving spline at a tip end in a rotation axial direction of said driving spline is set to be smaller than that at a root portion in the rotation axial direction and a step is formed therebetween. 13. The image forming apparatus according to claim 9 wherein a diameter of the tooth tip of said driving spline is gradually reduced toward a tip end from a root in a rotation axial direction of the driving spline or from a middle portion between the root and the tip end and a taper is formed therebetween. 14. The image forming apparatus according to claim 10 wherein a diameter of the tooth tip of said driving spline is gradually reduced toward a tip end from a root in a rotation axial direction of the driving spline or from a middle portion between the root and the tip end and a taper is formed therebetween. 15. The image forming apparatus according to claim 9 wherein a tooth width of said driving spline at a tip end in a rotation axial direction of said driving spline is set to be smaller than that at a root portion in the rotation axial direction and a step is formed therebetween. 16. The image forming apparatus according to claim 10 wherein a tooth width of said driving spline at a tip end in a rotation axial direction of said driving spline is set to be smaller than that at a root portion in the rotation axial direction and a step is formed therebetween. 17. The image forming apparatus according to claim 9 wherein a tooth width of the driving spline is gradually reduced toward a tip end from a root in a rotation axial direction of said driving spline or from a middle portion between the root and the tip end and a taper is formed therebetween. 18. The image forming apparatus according to claim 10 wherein a tooth width of the driving spline is gradually reduced toward a tip end from a root in a rotation axial direction of said driving spline or from a middle portion between the root and the tip end and a taper is formed therebetween. 19. An image forming apparatus comprising: an image carrier; a driving unit which transmits a driving force to the image carrier via a driving spline; and at least one of a plurality of members to be driven which receives the driving force transmitted from the driving unit via said image carrier, wherein a flange is further disposed coaxially with a rotation shaft of the image carrier in one end of said image carrier and rotated with said image carrier, an involute spline shaped follower spline to which the driving force is transmitted from the driving unit via the driving spline is formed on an inner peripheral surface of the flange, and driving force transmission means for transmitting the driving force to at least one of said members to be driven is formed in a predetermined gear shape on an outer peripheral surface of the flange, the follower spline of the flange attached on the rotation shaft of said image carrier is positioned and connected to said driving spline so that tooth surfaces of the follower spline and said driving spline contact each other on opposite sides and gaps are formed between a tooth tip of the follower spline and said driving spline and between a tooth root of the follower spline and said driving spline, and the driving force of the driving unit transmitted from said driving spline is transmitted through the driving force transmitting means so that at least one of the plurality of the members to be driven are rotated. 20. The image forming apparatus according to claim 19 wherein said image carrier is a photoconductor drum. 21. The image forming apparatus according to claim 19 wherein said driving force transmission means for transmitting the driving force to said member to be driven is one of a spur gear and a helical gear. 22. The image forming apparatus according to claim 21 wherein said member to be driven is at least one of a developing roller, charging means and a disposal toner screw. 23. The image forming apparatus according to claim 19 wherein a diameter of a tooth tip of said driving spline at a tip end in a rotation axial direction of said driving spline is set to be smaller than that at a root portion in the rotation axial direction and a step is formed therebetween. 24. The image forming apparatus according to claim 19 wherein a diameter of a tooth tip of said driving spline is gradually reduced toward a tip end from a root in a rotation axial direction of said driving spline or from a middle portion between the root and the tip end and a taper is formed therebetween. 25. The image forming apparatus according to claim 19 wherein a tooth width of said driving spline at a tip end in a rotation axial direction of said driving spline is set to be smaller than that at a root portion in the rotation axial direction and a step is formed therebetween. 26. The image forming apparatus according to claim 19 wherein a tooth width of said driving spline is gradually reduced toward a tip end from a root in a rotation axial direction of said driving spline or from a middle portion between the root and the tip end and a taper is formed therebetween. 27. An image forming apparatus comprising: an image carrier; a driving unit which transmits a driving force to the image carrier via a driving spline; and a plurality of members to be driven which receive the driving force transmitted from the driving unit via said image carrier, wherein a flange is further disposed coaxially with a rotation shaft of the image carrier in one end of said image carrier, an involute spline shaped follower spline to which the driving force is transmitted from the driving unit via the driving spline is formed on an inner peripheral surface of the driving-side flange, and driving force transmission means for transmitting the driving force to at least one of said members to
※ AI-Helper는 부적절한 답변을 할 수 있습니다.