초록 ▼

A technique for transmission of wireless signals across CDMA radio links. Bandwidth is allocated dynamically within a session to specific CDMA subscriber unit based upon data rate determinations. Specifically, a dynamic bandwidth allocation algorithm operates from limits calculated based upon availa

A technique for transmission of wireless signals across CDMA radio links. Bandwidth is allocated dynamically within a session to specific CDMA subscriber unit based upon data rate determinations. Specifically, a dynamic bandwidth allocation algorithm operates from limits calculated based upon available ports per subscriber, expected user bandwidth, and parallel user bandwidth versus throughput. Provisions for priority service, unbalanced forward and reverse spectrum utilization, voice prioritization, and band switching are also made.

대표청구항 ▼

A technique for transmission of wireless signals across CDMA radio links. Bandwidth is allocated dynamically within a session to specific CDMA subscriber unit based upon data rate determinations. Specifically, a dynamic bandwidth allocation algorithm operates from limits calculated based upon availa

A technique for transmission of wireless signals across CDMA radio links. Bandwidth is allocated dynamically within a session to specific CDMA subscriber unit based upon data rate determinations. Specifically, a dynamic bandwidth allocation algorithm operates from limits calculated based upon available ports per subscriber, expected user bandwidth, and parallel user bandwidth versus throughput. Provisions for priority service, unbalanced forward and reverse spectrum utilization, voice prioritization, and band switching are also made. lural different gloss surfaces is provided. Moreover, an image forming apparatus using these is also provided. an the transport speed of another sheet of said sequential sheet. 2. An image forming apparatus according to claim 1, wherein said speed control means sets the higher transport speed on at least one of said sheet supply transporting means and said sheet ejection transporting means during transportation of at least one of the last sheet and the first sheet of sequential sheets on which images are formed are formed higher than the transport speed in the image forming section. 3. An image forming apparatus according to claim 1, wherein each of said sheet supply transporting means and said sheet ejection transporting means is driven by a stepping motor, and said speed control means controls the sheet transport speed of said sheet supply transporting means and said sheet ejection transporting means by controlling said stepping motors. 4. An image forming apparatus according to claim 1, wherein at least one of said sheet supply transport section and said sheet ejection transport section includes a curved sheet transport path. 5. An image forming apparatus according to claim 1, further comprising: a re-transport section for transporting a sheet, on one side of which an image has been formed, back to said image forming section for forming an image on the other side of said sheet having the image formed on one side thereof; and re-transport sheet transporting means for transporting the sheet in said re-transport section back to the image forming section, said speed control means controlling the sheet transport speed of at least one of said re-transport sheet transporting means, said sheet supply transporting means and said sheet ejection transporting means to be higher than a sheet transporting speed in said image forming section during transportation of a predetermined sheet for image formation on the other side of said predetermined sheet. 6. An image forming apparatus according to claim 1, wherein sheet ejecting means for ejecting a sheet from said sheet ejection transport section is provided in said paper ejection transport section, and said speed control means controls said sheet ejecting means to eject the sheet at a predetermined sheet ejection speed regardless of a sheet transport speed of said sheet ejection transporting means. 7. An image forming apparatus comprising: an image forming section; a sheet supply transport section for transporting a sheet to said image forming section; sheet supply transporting means for transporting sheets in said sheet supply transport section; and speed control means for controlling a sheet transport speed of said sheet supply transporting means, wherein said speed control means controls said sheet supply transporting means so that the sheet transport speed of at least one of the last sheet and the first sheet of sequential sheets on which images are formed is higher than the sheet transport speed of another sheet of said sequential sheet. 8. An image forming apparatus comprising: feed rollers for transporting sheets; a photoconductive drum on which an electrostatic latent image is formed, wherein said electrostatic latent image is developed into a visible image and transferred to a sheet transported by said feed rollers; an ejection roller for ejecting the sheets on which the visible images on said photoconductive drum are transferred; and a control unit for controlling the sheet transport speed of said feed rollers so that the sheet transport speed of at least one of the first sheet and the last sheet of sequential sheets is higher than the transport speed of another sheet of said sequential sheet. 9. An image forming means according to claim 8, wherein said control unit controls the sheet transport speed of said feed rollers so that the sheet transport speed of at least one of the first sheet and the last sheet of sequential sheets transferred by said feed rollers is higher than the sheet transport speed during transference of the visible image at said photoconducti ve drum. 10. An image forming apparatus according to claim 8 or claim 9, wherein said feed rollers are driven by a stepping motor, and said control unit controls the sheet transport speed of said feed rollers by controlling said stepping motor. 11. An image forming apparatus comprising: first feed rollers for transporting sheets; a photoconductive drum on which an electrostatic latent image is formed, wherein said electrostatic latent image is developed into a visible image and transferred to a sheet transported by said first feed rollers; second feed roller for transporting the sheets on which the visible images on said photoconductive drum are transferred; ejection roller for ejecting the sheets transported by said second feed roller; and control unit for controlling the sheet transport speed of said second feed rollers so that the sheet transport speed of at least one of the first sheet and the last sheet of sequential sheets transferred by said second feed roller is higher than the transport speed of another sheet of said sequential sheet. 12. An image forming means according to claim 11, wherein said control unit controls the sheet transport speed of said second feed roller so that the sheet transport speed of at least one of the first sheet and the last sheet of sequential sheets transferred by said second feed roller is higher than the sheet transport speed during transference of the visible image at said photoconductive drum. 13. An image forming apparatus according to one of claim 11 or claim 12, wherein said second feed roller is driven by a stepping motor, and said control unit controls the sheet transport speed of said second feed roller by controlling said stepping motor. 14. An image forming apparatus comprising: feed rollers for transporting sheets; a photoconductive drum on which an electrostatic latent image is formed, wherein said electrostatic latent image is developed into a visible image and transferred to a sheet transported by said feed rollers; ejection roller for ejecting the sheets on which the visible images on said photoconductive drum are transferred; and control unit for controlling the sheet transport speed of said feed rollers so that said feed rollers transport at least one of the first sheet and the last sheet of sequential sheets at a first speed, and said feed rollers transport another sheet of said sequential sheet at a second speed, wherein said first speed is higher than said second speed. 15. An image forming means according to claim 14, wherein said first speed is higher than the sheet transport speed during transference of the visible image at said photoconductive drum. 16. An image forming apparatus according to claim 14 or claim 15, wherein said feed rollers are driven by a stepping motor, and said control unit controls the sheet transport speed of said feed rollers by controlling said stepping motor. 17. An image forming apparatus comprising: first feed rollers for transporting sheets; a photoconductive drum on which an electrostatic latent image is formed, wherein said electrostatic latent image is developed into a visible image and transferred to a sheet transported by said first feed rollers; second feed roller for transporting the sheets on which the visible images on said photoconductive drum are transferred; ejection roller for ejecting the sheets transported by said second feed roller; and control unit for controlling the sheet transport speed of said second feed rollers so that said second feed roller transports at least one of the first sheet and the last sheet of sequential sheets at a first speed, and said second feed roller transports another sheet of said sequential sheet at a second speed, wherein said first speed is higher than said second speed. 18. An image forming means according to claim 17, wherein said first speed is higher than the sheet transport speed during transference of the visible image at said photoconductive drum. 19. An image